![Seed-shaped ships wait on rails inside a cavern train station.](/_astro/subterranean-train-station-for-seed-ships-kroma-turbo.BQE-ZAnm_25OI3f.jpg) Seed-shaped ships wait on rails inside a cavern train station. 1. [Prompts](/prompts) 2. / 3. [Concept Art](/prompts/concept-art) 4. / 5. Subterranean train station for seed ships # Subterranean train station for seed ships - [Model Kroma Turbo](/models/kroma-turbo) - Wide 16:9 - 1024 × 576 · L - 10 steps - Max quality - iPadMac ## Prompt and Settings Copy prompt A cavern train station houses sleek seed-shaped ships on magnetic rails beneath a sleeping city. Maintenance crews in plain work suits connect thick coolant hoses while mineral roots hang from the ceiling. Platform lamps reveal basalt walls, tiled floors, cargo crates, and glass inspection bays. Wide 16:9 frame, high balcony camera looking down the rail line. Amber work lights contrast with cyan engine cores. Concept art environment design, readable scale, practical machinery, layered architecture. ### Negative Prompt Copy negative prompt text, watermark, logo, brand label, warped rails, duplicate ships, tiny unreadable signs, blurry workers, noisy lighting Seed 32273331 Steps 10 Quality Max Size 1024 × 576 Made With Private Diffusion on a Mac with Apple Silicon Share Make it on your own iPad or Mac. Nothing you type leaves the device. [![Pre-order on the App Store](/app-store/pre-order-badge/en/pre-order.svg)![Pre-order on the App Store](/app-store/pre-order-badge/en/pre-order-dark.svg)](https://apps.apple.com/app/apple-store/id6760593556?pt=96139298&ct=pd_other&mt=8) ## Why This Prompt Works This prompt frames concept art as an environment for production design, not just a vehicle beauty shot. The high balcony view carries the composition by showing rails, ships, platforms, crews, and cavern roof in one wide layout. Amber work lights against cyan engine cores give Kroma Turbo a clear color structure, while basalt, tile, glass bays, hoses, cargo crates, and magnetic rails describe how the station functions at human and architectural scale. ## Recreate It in Private Diffusion 1. Paste the prompt into Studio and choose Kroma Turbo. 2. Set Size to L and Aspect Ratio to Wide 16:9. 3. Type 32273331 into Seed. On a Mac, switch off Randomize first. 4. Set Steps to 10. 5. Paste the negative prompt into Negative prompt. 6. Switch on Max quality (slower). 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