This is an illustration I did for an upcoming book of "weird fantasy role playing". It's called Lamentations of the Flame Princess, and if you want to know more about it, here's a link to their website:
I don't understand how it was possible for you to paint this, because it seems unreal. It's maybe a good thing you didn't include the duration of the creative process. It couldn't have been quick. Seriously awesome work, man.
Thank you! It actually took maybe 4 or 5 days to complete, I don't remember exactly. The most important part was to get some good reference pictures for this, so I had my girlfriend struggling in the jacuzzi and wearing an Halloween dress, while I was taking pictures.