Vintage Japanese retro sci-fi poster illustration, compact centered chest graphic composition, isolated on a flat solid black background. A stylized golden-cream crescent moon rendered in bold geometric flat shapes with simplified decorative crater patterns forms the primary silhouette anchor of the design. Seated casually on the lower curve of the crescent, a retro-suited astronaut wears a simplified vintage spacesuit with clean geometric panel divisions, a rounded bubble helmet with a dark reflective visor rendered as a flat graphic shape, and chunky blocky retro boots — the figure drawn with simplified anatomy and clean graphic silhouettes in the 1970s–1980s Japanese sci-fi illustration tradition. The astronaut holds an open book, glancing down at it with a relaxed curious posture. Beside the astronaut sits a friendly extraterrestrial companion with a large rounded head, oversized almond-shaped dark eyes, small simplified mouth, slender body, and long elegant fingers — rendered in flat muted retro green, the alien's warm curious expression making it read immediately as a companion figure. The golden-cream crescent moon and the retro green alien are the primary focal colors against the black ground. Surrounding the paired figures, a carefully balanced sparse field of small stylized planets, a tiny ringed planet, simplified circular moons, crisp four-point stars, thin decorative orbital arc lines, and scattered cosmic dots fills the negative space without cluttering — all rendered as flat graphic shapes with minimal linework and intentional asymmetrical placement in classic Japanese poster composition logic. The full palette is strictly limited to cream ivory, warm golden yellow, burnt orange, muted red, deep navy, teal blue, retro green, and white — flat blocks of color with no gradients and no 3D rendering. Small vertical Japanese-inspired retro typography and a few decorative stylized characters are integrated tastefully along one edge of the composition, small enough to read as atmospheric detail rather than dominant text, rendered in cream or teal. Illustration technique is clean vector-inspired flat ink shapes with minimal but intentional linework, subtle screen-print texture, and slightly weathered vintage ink grain on the figures and moon surface only — evoking hand-separated retro print graphics. Print finish is crisp screen-print friendly with high contrast edges, limited ink colors, no modern gloss, no excessive texture, no mockup, no watermark, isolated standalone graphic on flat solid black. | PODspy AI Design