I like these pegging images, but they’re also kind of annoying. Normally when I have an image by an unknown artist I’ll either trace the name via a reverse image search, or the image will be so rare that I don’t get any good clues to follow. In this case the artist seems to be prolific, with all sorts of similar kinky imagery showing up via a Yandex reverse image search. Yet I can’t see a name, original site or even a good collected gallery anywhere. Just lots of drawings in a similar style (e.g. this one) scattered across a rogues gallery of dodgy sites. I’ve never known a case where there’s such a quantity of work in such a distinctive style, and yet no obvious name.
Obviously, if anyone can tell me exactly who the artist is here, I’d be eternally grateful. I feel like an idiot for not being able to figure it out.

Updated: Thanks to a very helpful comment I can now attribute these to a Cosmo magazine series on pegging. You can see more examples here and here.
She has a tumblr 
In the femdom realm, I’d guess Poison Ivy would represent the definitive ecosexual domme. This artwork of her capturing both Batman and Superman 
This artwork is by the Japanese artist 
This artwork of Phyllis and Aristotle, with Alexander looking on, is circa 1485 and is attributed to the German artist known as 
This is by the artist 
I believe the artist is known as