画像のプロンプト
Vertical full-bleed image, native source proportions 673:1200. Low angle frontal white-robed adult male rider on a white horse, both cropped at bottom. Hooded head centered x49%,y27%, broad white shoulders and long drapery fill middle and left. Face deeply shadowed except ochre nose and small red-orange eye accents. Horse head and long neck occupy x46–88%,y54–100%, ears upright, pale mane descending left side. Cloud bank ivory cream billows behind shoulders around y29–55%, deep teal-blue sky occupies upper third. Robe is a large almost white light block; no armor, saddle detail dominant, weapons or extra horses. Preserve horse right foreground versus rider center-back.
Rendering: vintage mythological fantasy print, ivory gouache-like highlights, dusty cobalt sky, fine warm paper grain and sculptural hard-shadow anatomy. Preserve observed object count, relative positions and negative space. No stylistic fusion, decorative border, platform UI, invented watermark or signature. Do not add unrelated props or colors.