This is looking awesome Shug, not least because the pose is really tricky!
I think the leading leg and the tunic look brilliant and the detailing that has already gone in to the image so far is clear and crisp. The bounce and rim lighting in places like the bow hand is really effective and gives these areas real depth too.
The only thing that's bothering me at the moment are the textures. The skin, the fabric, the leather, the hair all have the same texture to them. You will get to it eventually I am sure, but it is something that needs to be kept in mind. Plu, I think there may be just a bit too much green reflecting from his skin. It looks artificially bright, so maybe tone it down a few touches. And lastly, I just can't help but think that this guys face lacks depth. I don't know if it's the high croma of the shadows or a structuaral issue, but it lacks a depth of form. Maybe it's the area around the mouth? Some more muscle definition might help.
Anyhoo, see what you think my friend. Looking forward to seeing this one get finished off.
P.S. Sorry about my spelling!!
It's not about volume, it's about value!