That is looking pretty sweet, I really want to see it when its done. It's a fun idea. This might not really apply anymore to.. anything really, but I would say that maybe you should make that post smaller. I feel like right now it kinda makes his scale smaller in comparison to the scale you set in the concept art. True, if it was much smaller, one might ask "what's keeping him there?" but it might also be kind of funny that way.
That's a really good point, and not at all difficult to change. I'll scale it down and see how it looks.Thanks!