2018 4_fingers abs anthro balls black_fur black_hair black_nose brown_eyes canine claws cybernetic_arm cybernetics digital_drawing_(artwork) digital_media_(artwork) dog_tags duo exercise eyebrows feralise fur green_eyes grin gym hair half-erect humanoid_penis inside jewelry machine male mammal multicolored_fur muscular navel necklace nipples nude penis pubes pull_ups scar signature smile tan_fur toe_claws two_tone_fur vein workout