Prompt
Using REFERENCE_0 as a rough manga background layout, convert the sketch into a polished black-and-white manga panel background. Keep the same one-point perspective composition: two beds framing the foreground, a central floor mat leading to a recessed door, a wall clock on the left, a shelf with books, a guitar leaning on the left bed, a poster/bulletin-board area on the right wall, and a potted plant plus small boxes/items on the right. Replace the loose red annotations and rough construction lines with clean finished line art, accurate perspective, detailed room objects, screentone shading, crosshatching, halftone gradients, and tidy manga-style textures. Add believable details not present in the sketch: wood plank flooring in the doorway area, rumpled bedding folds, small papers/books on the beds and floor, a corkboard with pinned notes, a shopping bag/bin near the right side, and subtle wall shadows around the doorway. Present the finished art as a single vertical manga page panel centered on a pale lavender manuscript-paper border with crop marks and page guide lines. No readable labels or red handwriting should remain; the result should look like a professional monochrome comic background ready for final human touch-up.
