This might be old but it appears it hasn't been posted here yet. This artist pornventure has a blog called kan-yeezy's trappin paradise and while there's not a lot of process, the art is good.
Highlights:
http://pornventure.tumblr.com/post/1...that-isnt-grey
http://pornventure.tumblr.com/post/9...-to-rp-on-parp
http://pornventure.tumblr.com/post/1...rstyle-and-the
http://pornventure.tumblr.com/post/1...yyyyy-her-name
The blog:
(Warning there is futa and other random stuff you might not like.)
http://pornventure.tumblr.com/
It says they do commissions so that might interest some of you too.