1girl, 3, alternate_costume, amanun, animal_ears, armillary_sphere, arms_behind_head, arms_up, blue_eyes, blue_shorts, blush, book, boots, breasts, brown_footwear, cactus, collared_shirt, cup, doughnut, food, foot_out_of_frame, frilled_sleeves, frills, goggles, goggles_on_head, grey_hair, horse_ears, horse_girl, indoors, kneehighs, knees_apart_feet_together, knees_up, legs, looking_at_viewer, lying, medium_hair, no_shoes, on_back, plant, potted_plant, puffy_shorts, reclining, seiun_sky_(umamusume), shirt, short_sleeves, shorts, signature, small_breasts, socks, solo, suspenders, teacup, thighs, umamusume, unworn_boots, white_shirt, window