I've actually made a rendition of this one. Once I get it photographed (not photoshopped), I'll try to post it in. It's very similar, but with some distinctive differences too.
I've looked at all you art here as a lurker, Serge, and I have to say, you are one badass artist chick! Seriously, it was so great, you inspired me to go out and draw a Jake/Ron thing myself.
Unfortunately, I'm still a beginner, so I'm just drawing off of your pics right now (not copying, I'm using them as basis, or making renditions of them). Honestly, you are a great artist, and you should go into a career with this stuff.