Pepe!
What were you doing under there?
This is Olga Katysheva, a Russian artist from Ekaterinburg in West Siberia, but she does NOT use Pepe in her art. In fact her style is quite different. Here is one of the pages that she has
http://mk18.net/olga-katysheva-olga-katysheva/
On there you can find links to her Instagram, Twitter, Facebook, VK and so on.
And these are the two original images that somebody photoshopped Pepe onto.