abstract_background animal_genitalia anus ass_up balls black_claws black_nose blue_eyes butt claws feral floppy_ears fluffy fully_sheathed fur genitals light looking_at_viewer looking_back looking_back_at_viewer male multicolored_body multicolored_fur open_mouth open_smile perineum pink_anus presenting presenting_hindquarters quadruped raised_tail sheath simple_background smile solo solo_focus standing three-quarter_view whisker_spots white_balls white_body white_fur white_perineum yellow_body yellow_fur blp canid canine canis domestic_dog mammal hi_res lighting sketch