I was wondering why this wall reminded me of something :) Anyways, your vector is well done. The lines a crisp, and you've captured the original emotion of the scan perfectly. I dare say that I like your vectoring of this scan better than my version ^^

I think room for improvement could be found in the wall bg. I'm guessing you were going for the 'walking on water' concept for the wall, which is an awesome design for the wall. But since you vectored the scan, it doesn't blend too well with the edited stock-photo that you made as the bg. Some more editing to take away the photorealism would have improved the style of the wall, or the best thing would be to vector in the water ripple and effects. It would take longer, but everything would have a unified style, which would be awesome.

Overall, a fairly solid wall :) Your vectoring skills are top-notch, it's just the blending in this wall let you down a bit. Keep it up ^_^