2015 5_fingers abs absurd_res akita animal_genitalia animal_penis anthro balls biceps big_muscles black_nose black_penis brown_fur canine canine_penis claws detailed detailed_background digital_media_(artwork) erection forest fur grey_fur hi_res inner_ear_fluff knot lagoon looking_at_viewer male male_only mammal multicolored_fur muscular muscular_male navel night nude orange_eyes outside pecs penis raised_tail slit_pupils solo standing stone tree water wet wolf xuan_sirius yellow_eyes