Sunshine Between Tall Walls

Finished editorial marker illustration, square 1:1. View obliquely downward into one narrow architectural light well open to the sky. Comically elongated peach walls rise around a tiny warm-yellow sunlit floor; the luminous vertical void is the hero. At its base, one broad, squat staircase divides into two very short flights against the side walls, drawn with only a few chunky steps. Asymmetric proportions, simple convincing perspective, no diagram or cutaway. Loose dark-plum marker contours, broad peach and ochre fills, one cool lavender shadow, slight marker overlap with no intricate texture. Place the architectural vignette left of centre, with clean warm-ivory breathing room around it. Clear silhouettes and light-dark shapes readable at thumbnail size. No people, floating objects, medical equipment, text, logos or watermarks.