Tree of the Ginkgo Update

I started out my sculpt on my tree first using curves in maya, then extruding cylinders along the curves using polygons as a guide, then used that to export to zBrush and created my base out of zSpheres.  Once happy with that base I began sculpting, this is what i've gotten so far and am about to start texturing, I am looking for critiques or suggestions for improvements.


Some of my reference

This one was shot by my lovely girlfriend Emily

Now for the goods

Placed a box for the ground ref of where the roots will cut off

 Some detail shots

Once again C&C are welcome!