GPT Image Prompt
How to useCopy this prompt and paste it into ChatGPT, Gemini, Nano Banana, or your favorite AI image tool. Adjust details if needed.
Create a high-resolution vertical 3:4 layered cardboard coastal-city artwork with photorealistic 3D paper-craft rendering, tactile handmade detail, and a polished gallery-ready finish.
INTENDED USE
A decorative art-first diorama about maritime travel, historic architecture, warm desert materials, and an imagined harbor city built entirely from paper and cardboard.
SCENE
Construct one complete coastal city from stacked kraft cardboard and corrugated paper. Fill the lower third with a layered blue paper sea. Place a dense cluster of simplified historic buildings along the shoreline, backed by overlapping mountain ridges and a large circular sun. Add scalloped cardboard cloud bands across the upper edge and exactly five small cut-paper bird silhouettes around the sun.
ARCHITECTURE
Build the city from many compact rectangular structures with flat roofs, small arched doors, narrow windows, parapets, crenellations, and occasional domed roofs. Keep the structures closely packed but individually readable.
Place one tall slender arched tower in the upper-right area, rising well above the city. Give it several stacked levels, narrow vertical openings, a square base, and a pointed upper section. Place one rounded observation-tower structure in the upper-left, formed from stacked circular cardboard discs and a narrow pedestal. Add one prominent cylindrical fortified tower near the center with a crenellated crown.
Do not reproduce any identifiable real monument or exact historic city. Keep all architecture original, generic, and coherent.
MOUNTAINS AND SUN
Create multiple overlapping mountain ridges behind the city. Mix smooth kraft-paper surfaces with exposed corrugated channels, torn deckled edges, scored folds, and layered thickness. Position one large warm beige circular sun behind the central mountains, partly obscured by the ridges and lower cloud shapes.
SEA AND BOATS
Build the sea from several horizontal layers of matte blue paper with gently undulating cut edges. Add thin pale highlight lines to selected wave crests while keeping the water clearly constructed from paper.
Show exactly two miniature sailboats in the lower foreground. Place one boat toward the lower-left and the second toward the lower-right. Give each boat one curved kraft-cardboard hull, one tall mast, restrained rigging, and one large dark brown triangular sail. Angle both boats slightly toward the center so they feel connected to the harbor city.
COMPOSITION
Use a frontal slightly elevated view of a shallow wall-mounted bas-relief. Organize the image in clear horizontal layers:
- blue sea and two boats in the lower third;
- densely packed city across the middle;
- mountain ridges, sun, towers, clouds, and birds above.
Keep the tall tower on the right and rounded observation tower on the left as balancing vertical anchors. Use the central sun and fortified tower to stabilize the composition. Preserve crisp silhouettes and narrow shadow gaps between every overlapping layer.
LIGHTING
Use a large warm diffused key light from the upper left at approximately 35–45 degrees. Add gentle frontal fill and soft ambient illumination. Create realistic thin shadows beneath building facades, roof edges, mountain layers, clouds, waves, and boat components. Keep highlights controlled and retain visible cardboard fibers in both bright and shadowed areas.
COLOR
Use kraft cardboard tan #B88E62 for the dominant city and mountains, light cardboard beige #D0AD7B for sunlit surfaces, corrugated brown #8F684A for exposed channels and recessed mountain layers, sea blue #4F8EB8 for the water, dark sail brown #6C3F29 for the sails, shadow umber #5B4637 for deep recesses, and pale kraft highlight #DCC29A for selected edges and the sun.
MATERIALS AND CRAFT
Render visible paper fibers, corrugated fluting, stacked chipboard thickness, die-cut openings, slightly uneven blade cuts, scored folds, compressed joints, curled corners, tiny adhesive seams, subtle torn edges, and restrained handmade imperfections. Differentiate smooth cardstock from rough corrugated cardboard and matte blue paper.
Maintain realistic contact shadows, occlusion, layer depth, and physical construction so the city appears genuinely cut, folded, stacked, and assembled by hand.
STYLE AND FINISH
Create a refined handcrafted architectural diorama with storybook warmth, simplified geometry, strong tactile material realism, and calm maritime atmosphere. Keep the result sophisticated, clean, detailed, and gallery-ready rather than childish, flat, or toy-like.
PRESERVE
Exactly one coastal cityscape, one large circular sun, one tall right-side tower, one rounded left-side observation tower, one central fortified tower, two sailboats, five bird silhouettes, multiple mountain layers, multiple cloud layers, and a blue layered sea.
TEXT AND IDENTITY
No readable text, letters, numbers, names, signs, logos, signatures, brands, captions, borders, or watermarks anywhere.
CONSTRAINTS
No people, animals other than the five bird silhouettes, additional boats, modern vehicles, docks, cranes, flags, readable signage, realistic concrete, glossy plastic, metallic buildings, photographic water, malformed architecture, duplicated towers, broken masts, detached sails, muddy exposure, weak layer shadows, excessive depth, flat vector styling, clutter, or accidental typography.
OUTPUT
One clean high-resolution vertical 3:4 image with crisp cut edges, realistic cardboard fibers, controlled bas-relief depth, balanced composition, and a polished gallery-ready finish.