1:1 1_eye 2018 2_heads ambiguous_gender black_and_white black_border border brain digital_drawing_(artwork) digital_media_(artwork) doublehorse_(scp_foundation) ears_up equid equine feral front_view full-length_portrait hooves horse mammal mane monochrome multi_head on_hind_legs organ organs portrait pupils scp_foundation silhouette simple_background slit_pupils solo standing sunnyclockwork tail three-quarter_view underhoof unguligrade white_background