Probe-validated flat-ink screen-print poster illustration (gig-poster school): 3-4 flat spot-color inks on warm cream paper, flat background fields, gestural linework, halftone grain, dramatic negative space. Per-deck flavour is a thin ink-plus-motif overlay on the shared base block.
Adopted
2026-07-11
Label
Flat-ink screen-print poster v1
Model
google/gemini-3.1-flash-image
Export
7.5% edge crop
In the gallery
0 published images
Style block
Appended last to every prompt this pack composes, character for character. Changing it means publishing a new pack, never editing this one.
flat color screen-print poster illustration, limited palette of 3-4 flat spot-color inks on a warm cream paper tone, single saturated flat background field, bold graphic shapes, visible ink texture and subtle halftone grain, energetic gestural linework with sketchy unfinished edges and ink splatter, dramatic negative space, figure rim-lit or in partial silhouette, thin concentric ring and radial line accents behind the subject, conceptual editorial poster composition, matte, no gradients, no glossy digital painting, no photorealism, no text, no lettering, no border, no frame, no watermark
Composition order
The composer assembles the final prompt in this order, top to bottom. The style block is always last, and always verbatim — that placement is the whole reason a pack is immutable.
Overlayyou supply this
Palette and motif, substituted into the pack template.
inks: {palette}; motif: {motif}
Subjectyou supply this
What you typed, after the guard rules have run over it.
Guard clausesconditional
Appended by whichever guard rules matched your subject. Never appended twice.
Safe zoneconditional
Added for card-shaped sizes; omitted for square token art.
Composition: keep the subject and all critical elements within the central 80 percent of the frame on both axes; all four outer edges (about 15 percent in from each side) are crop-safe margin with nothing important in them.
Style block
The pack itself. Always last, always verbatim, and it ends in the suffix below.
flat color screen-print poster illustration, limited palette of 3-4 flat spot-color inks on a warm cream paper tone, single saturated flat background field, bold graphic shapes, visible ink texture and subtle halftone grain, energetic gestural linework with sketchy unfinished edges and ink splatter, dramatic negative space, figure rim-lit or in partial silhouette, thin concentric ring and radial line accents behind the subject, conceptual editorial poster composition, matte, no gradients, no glossy digital painting, no photorealism, no text, no lettering, no border, no frame, no watermark
Suffix
The mandatory tail. The composer re-appends it if anything has displaced it.
no text, no lettering, no border, no frame, no watermark
Guard rules
Quirk countermeasures, learned from real runs and carried as pack data rather than code. Each one exists because a specific thing went wrong; the reason is part of the pack.
Id
What it does
Fires on
Why it exists
proper-nouns
proper-noun guard
every prompt
Proper nouns leak into the image as painted lettering. Describe characters and objects by appearance only.
Every model tested loves adding an ornate frame to card-art prompts even with the no-frame clause; the belt-and-suspenders answer is this clause plus the 7.5 percent edge crop.
Shot list
None. This pack predates the art-direction shot list; framing comes entirely from the subject you write.
Size presets
card4:3landscape · default
token1:1square
cardback5:7portrait
card-px2304x17284:3 landscape
token-px1200x1200square
cardback-px1600x22405:7 portrait
Square sizes are token art and skip the safe-zone clause; card shapes get it.