Organic Arm Model WIP

Chrono Reaper

I am working on making better arms for my next series of organic models. The arm I am achieving is semi-muscular average arm build that will eventually be attached to a character that will be no more than 10k polys in total. I have everything laid out as far as the arm goes but I would like some critique to make it better before exporting it over in ZBrush and adding in the finer detail. The goal is to take the hi-res version and render out the normals onto the low poly model. Here are a few previews so far:


EDIT:
I failed to mention it has 860 polys, 850 verts.

https://www.dropbox.com/sh/cjjs6zwdwqvbln3/AACA21IYJiKCmAMHAjR-1LVFa