@Hapless Bills Fan I've got this down to a science...
That gluteus maximus in proportion to the number of stairs and width of said staircase! Also if you note the fine detail in the left cheek that only a professional horse rider would get from all that saddle time, aka Saddle Butt...
One can deduce that this is Ed Oliver rump with 100% certainty!!!
@Mr. WEO do you concur???
also it seems Sills V snuck back on the team in #40😍