2boys, :d, alternate_costume, alternate_eye_color, antenna_hair, blue_background, blue_eyes, blue_hair, brothers, clothes_around_waist, collarbone, color_guide, cowboy_shot, eyewear_removed, fang, grin, jacket, limited_palette, long_sleeves, looking_at_viewer, male_focus, multiple_boys, open_clothes, open_jacket, open_mouth, red_eyes, red_hair, siblings, simple_background, sleeves_folded_up, smile, sunglasses, teeth, v-shaped_eyebrows, zipper