Rule 34 Dev - 2013 amber_eyes animal_genitalia anus backsack balls blue_sclera day detailed_background equine feathering feral forest fulguris fully_sheathed fur hair hooves horn jackrow leaves long_hair looking_at_viewer looking_back low-angle_view male male_only mammal nature nude outside raised_tail rear_view sheath solo tree unicorn white_fur|2431570368