anthro anus backsack balls butt casual_nudity collar collar_only dripping_paint erection flower genitals knot leaning leaning_forward looking_at_viewer looking_back looking_back_at_viewer male mostly_nude nude outdoor_nudity outside penis penis_backwards plant pose presenting presenting_hindquarters raised_tail rear_view smile solo tree zootopia heck_incarnate nick_wilde canid canine fox mammal painting_(artwork) traditional_media_(artwork)