It looks kinda IMGish. Here is a thread on a spider who went through the IMG thing. Make sure you look near the end for updated pics of her.
http://www.ball-pythons.net/forums/s...2581&highlight
If your spider is IMG, it wasn't like that as a hatchling, and it will gradually get closer to looking like a normal spider, but I think they never really get all the way back to normal. And I think so far, no one has proven IMG to be caused by anything genetic.
The thing is your snake looks like it has some sections that have remained normal spider looking, and as far as I am aware, IMG snakes change their whole body when they change. So the IMG thing may not apply at all. Part normal and part wierd is more like paradox, and in that case, your snake would have hatched that way and will stay that way its whole life. Unfortunately, paradox also has never been proven genetic as far as I am aware.