anthro anus backsack balls big_anus black_body black_scales butt butt_focus close-up detailed_anus detailed_background genitals glistening glistening_body glistening_scales lying male on_front perineum presenting presenting_anus presenting_hindquarters rear_view scales scalie_tail solo spread_legs spreading ultrawide window window_light scalesai scalie absurd_res hi_res widescreen