Sadly I haven't here my bow, but that's looking good. Now he's badass with his bow!
This ref is also a good one 
I've just make a paintover for minor improvments:
- The first finger may be a bit more contracted.
- Just check if the empennage don't go into the fingers.
- Arrow closer to the hand, like the ref.
- In yellow I moved a bit the pec and shoulder, to feel it's the dorsal-muscles that pull the arm.
