The Sea Inside a Shell

Make a single surreal collage artwork: a giant ivory seashell rests upright on a rust-red desert, and an impossibly tiny turquoise tidal pool is visible inside its opening. Two miniature swimmers float in that pool, giving a clear scale cue. Build the shell from detailed vintage natural-history engraving with subtle photographic sand pasted beneath it. Hard low sunlight from the right casts one convincing long shadow. Plenty of empty pale peach sky, a small blue paper circle near the horizon. Quiet visual wit, tactile cut edges, crisp focal shell, limited props. No lettering, no recognizable artwork copied, no galaxy texture or gratuitous floating objects. Generate exactly one finished image. Aspect ratio 3:4.