1girl, arms_behind_back, blush, braid, breasts, byleth_(female)_(fire_emblem), byleth_(fire_emblem), cleavage, cosplay, cowboy_shot, fire_emblem, fire_emblem:_three_houses, fire_emblem_heroes, green_eyes, green_hair, huge_breasts, looking_at_viewer, medium_hair, official_alternate_costume, simple_background, solo, sothis_(fire_emblem), sothis_(fire_emblem)_(cosplay), tiamat_(momokuri_mannen), white_background