1:1 2016 anatomically_correct anatomically_correct_anus anus backsack balls black_background brown_body brown_fur digital_media_(artwork) equid equine feathering feral fur genitals hi_res hooves horse looking_at_viewer male mammal mane multicolored_body multicolored_fur on_hind_legs perineum puffy_anus quadruped raised_tail rufciu signature simple_background solo tail underhoof white_body white_fur