2017 anthro anus biped blue_eyes blue_hair blue_nose blue_penis canine digital_media_(artwork) digital_painting_(artwork) dirtyscoundrel dog ears_back erection fur hair knot looking_at_viewer male mammal multicolored_fur multicolored_hair multicolored_tail nude on_ground penis pinup pose purple_ears purple_fur purple_hair purple_tail signature simple_background solo spread_legs spreading submissive_male two_tone_hair two_tone_tail white_anus white_fur white_tail