/ic/ - Artwork/Critique

Some time ago I was looking through my favorite artists galleries in order to study and compare few things. Not the first time, but I can't help but notice that some of them have this weird gap between a skill of drawing genitals and everything else. There are artists who draw pretty faces and great poses, but suck at drawing genitals. Likewise there are those who I follow solely because they draw really great and detailed sex scenes and genitals, but the faces(or something else essential) they draw are pretty derpy at times. Or just lack the detail.

I wonder how did it come to this for every one of them. Like, maybe they got satisfied at how they draw at some point?
How do you personally feel about this?
I try to keep everything on the acceptable level, but I guess I still give genitals slightly more time and detail. I just can't fap to rockets and radishes getting inserted into peaches, no matter how pretty the characters in possession are. And I can't allow myself to draw the same way so I try to improve.