seiun sky (paint the sky red) (umamusume), seiun sky (umamusume), umamusume, artist request, game cg, official art, 1girl, = =, animal ears, belt, belt buckle, belt collar, black belt, black robe, bracelet, buckle, cloud, cloudy sky, collar, day, dress, dutch angle, ear covers, electricity, electrokinesis, feet out of frame, field, flower, flower hairband, frilled sleeves, frills, fur-trimmed robe, fur trim, gold bracelet, gold buckle, grass, grey dress, grey hair, hair between eyes, happy, hood, hood up, hooded robe, horse ears, horse girl, horse tail, horseshoe ornament, jewelry, leaf, light particles, long sleeves, looking ahead, multiple bracelets, official alternate costume, open mouth, outdoors, palms, raised inner eyebrows, red flower, robe, shaded face, short dress, short hair, single ear cover, sky, smile, solo, standing, storm, tail, thigh strap, thighlet, torn clothes, torn dress, tree, wide sleeves, wind