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The Biggest One Is Named

A natural-history exhibition poster — watercolour specimens, hairline leaders, a huge year across the foot — built so the labelling actually holds up. Six fields.

graphicsposterexhibitionimage-promptminutes
What it hands backEvery leader lands · the centre is named · one register
A result produced by The Biggest One Is Named
Vibary
A second, different result produced by The Biggest One Is Named
Harbour Row

Two runs of the same template. The same law over fungi, and Amanita muscaria takes the centre and the longest leader. Two divergences from the first run, neither of them governed by the template: the labels here are set in a typewriter face rather than an italic serif, and the central name is set noticeably larger than the other five. The template fixes what a label must name and where its line must end, and says nothing about the face or the size - so both runs are correct and the plates do not match.

Lambis lambis sits on the conch at the lower right, on the longest leader on the sheet - which is the whole test, because the reference run named the cowrie, the nautilus, the coral and the weed and left the enormous shell in the middle with nothing on it. Six specimens, six leaders, every one landing on an outline, and all six names of the same kind. The faint pencil shoreline behind the shell went unlabelled, which is correct: it is decoration, and decoration does not get annotated.

Generated for this library

Input
  Subject   an island shell and coral collection
  Specimens a large spined conch - Lambis lambis · a tiger
            cowrie - Cypraea tigris · a chambered nautilus -
            Nautilus pompilius · a red coral branch -
            Corallium rubrum · gulfweed - Sargassum natans ·
            a scallop - Pecten maximus
  Titles    TIDE & SHELL · Shell Exhibition
  Show      ISLAND SHELL SPECIMENS
  When      2025.07.12-08.20 · 09:00-17:30 · Marine Natural
            History Museum
  Year      2025 · cream paper, shell brown, coral, olive

Returned   1 poster · 3:4 · watercolour plate on aged paper

centre    the conch low and central, largest by a long way,
          carrying its full name on the longest leader
labels    six names, six leaders, each one ending on the
          specimen it names
register  all six are species names - nothing captioned
          "coastal sample" or "tidal specimen"
paper     watercolour bloom, pigment grain, pencil underdrawing
          left visible at the edges
foot      2025 across the full width, two heavy rules, dates
          and place small beside it
SKILL.mdthe whole thing, as you would paste it© vibary.ai

You fill in 6 fields — the braced lines at the top. Everything below them is fixed.

  1. 1The exhibition subject
  2. 2The specimens, largest first, each with the name it carries
  3. 3The titles
  4. 4The exhibition name, set small
  5. 5The dates, times and place
  6. 6The year, and the palette

The Biggest One Is Named

Produce ONE image, 3:4 portrait: a natural-history exhibition poster built as an annotated specimen plate. Follow every line. Replace only the FIELDS block; everything after it is fixed.

First — do you have the fields?

If any field below still has braces around it, stop and ask. Put all the questions in one short message, and show the example under each one so they can see the shape of a useful answer. Wait for the replies, then draw. Never fill a brace yourself: a value you invented is a value nobody asked for, and it will look exactly as considered as the ones they did give you.

Ask in whatever language they are writing to you in. Translate the questions and the examples; do not make someone read English to tell you what they want.

The examples are only examples. If someone answers a question, use their answer; never fall back to the example because you prefer it.

If the fields are already filled in, ignore this and carry on.

Fields — replace these six lines only

  • The exhibition subject: {what is being shown}
  • The specimens, largest first, each with the name it carries: {each one — its name}
  • The titles: {a large title — a secondary title}
  • The exhibition name, set small: {a line}
  • The dates, times and place: {when and where}
  • The year, and the palette: {a year — a ground and three or four colours}

The label law

This is the rule the plate stands on, and it is the one that goes missing.

The largest specimen carries a label. It is the reason the poster exists; it sits lowest and largest and most finished; and it is the first thing to end up anonymous while every small specimen around the edge gets named. A reference run of this style handed correct Latin binomials to a cowrie, a nautilus, a coral and a weed — and left the enormous shell in the middle of the plate with nothing on it at all.

Every leader line ends on the thing it names, touching its outline. A hairline that stops in blank paper is a label with no specimen.

Every label is a name from the fields. No label is invented, and no label is attached to decoration — a contour squiggle, a wash, a construction circle is not a specimen and does not get annotated.

All labels are the same kind of name. If the fields give species names, every label is a species name. Do not top the list up with descriptive phrases when you run out; draw fewer labels instead.

Leaders

  • Hairline grey, much lighter than the type.
  • One or two straight segments meeting at a right angle. No curves, no arrowheads, no dots.
  • The label sits at the free end, the specimen at the other.
  • Leaders do not cross each other and do not cross the titles.

The plate

  • Watercolour and pencil. Washes with visible blooms and pigment grain, black sketch lines, pencil underdrawing left showing, passages deliberately unfinished at the edges.
  • Specimens scattered around the edges and middle, several cut by the edge of the sheet.
  • The largest sits low and central, most finished, most detailed.
  • Nothing photographic, nothing rendered in 3D.

Ground

Aged paper — cream, oatmeal or bone — with paper tooth and a faint worn-print quality. Quiet, dry, no gloss.

Type

  • The large title runs down the right, set vertically. If the script does not stack, rotate the whole line 90° so it reads bottom-to-top.
  • The secondary title runs alongside it, smaller, in a fine modern sans, letterspaced evenly.
  • A heavy short rule above and below that title pair.
  • The exhibition name runs down the left, in a slab or typewriter face.
  • Everything in one dark ink. No colour type.

The foot

  • The year is enormous — a heavy high-contrast serif, filling the lower left, far larger than any other type.
  • A rule above and below it, running the full width of the sheet.
  • Dates, times and place sit to its right in small type, mixing a fine sans with a small serif, with thin rules and brackets between the items.

Never

  • ✕ the largest specimen left unlabelled
  • ✕ a leader line ending on blank paper
  • ✕ a label on a wash, a contour or a construction line
  • ✕ names the fields did not supply
  • ✕ two registers of naming in one plate
  • ✕ labels arranged into a table or a key
  • ✕ photographs, 3D, cartoon styling or fluorescent colour
  • ✕ a year at the same size as the rest of the foot

The result

A plate that identifies its own subject: the big one named on the longest leader, every hairline landing on something real, and a year at the foot heavy enough to date the whole sheet.

The whole template, in one piece. The steps below are the entire workflow.

How to use it

  1. Copy the whole template with the button above.
  2. Replace the six FIELDS lines. List specimens largest first and give each the exact name you want printed — the order sets the layout and the names are used verbatim.
  3. Paste it into any image-capable agent or model, in one message. One run returns the poster.
  4. Check the biggest specimen has a label, and follow each leader line to its end. Anything landing on blank paper is a label with nothing to name.

What you swap

The exhibition subject
an island shell and coral collection
The specimens, largest first, each with the name it carries
a large spined conch — Lambis lambis · a tiger cowrie — Cypraea tigris · a chambered nautilus — Nautilus pompilius · a red coral branch — Corallium rubrum · gulfweed — Sargassum natans · a scallop — Pecten maximus
The titles
large title TIDE & SHELL · secondary title Shell Exhibition
The exhibition name, set small
ISLAND SHELL SPECIMENS
The dates, times and place
2025.07.12—08.20 · 09:00—17:30 · Marine Natural History Museum
The year, and the palette
2025 · aged cream paper, warm shell browns, coral pink, olive, black type

Before it runs

  • Real names for your specimens. The template will not invent them, because an invented binomial on a museum poster is a claim, and it looks exactly like a true one.
  • One specimen that is clearly the biggest. A plate of equals has no subject and the labelling has nowhere to start.
  • Names of one kind. A list mixing species names with phrases like 'coastal sample' produces a plate that cannot decide whether it is scientific.

When to reach for it

Museum and gallery shows, seasonal programmes, botanical or maritime subjects, anything with collected objects behind it. Templates in this style hand out Latin names to the small specimens around the edge and leave the enormous one in the middle — the reason for the poster — with nothing on it at all.

What changes

  • A plate of watercolour specimens on aged paper, cut by the edges, with one dominant subject low and central.
  • Every label naming a specimen and reaching it — no floating annotations, no captions on decoration.
  • The largest specimen carrying the fullest name, so the plate identifies its own subject.
  • One register of naming throughout, rather than Latin binomials mixed with vague descriptive phrases.
  • A heavy information foot: an oversized year, rules across the full width, dates and place in small mixed type.

Pairs with