fluoroid
^ Decent suggestions, but I'd suggest higher. I've seen crap selling for 25B that's not nearly as nice as your work. I don't have specific suggestions, as I haven't been on in a long time, but from what I've observed this far, you could definitely use 10B as a low starting base for your halfbody.
You're probably right. Looking around there are some shops with similar art in the 6-10b range, but then you see people auctioning off really mediocre art for 30b+
rofl
I'm not quite sure what to think.