Here's a good video:
Couple of things to notice (his last shot shows these the best, ~19 seconds)...
1) His draw wrist is in a natural, relaxed position. For most people, the wrist will bend inward slightly or the back of the hand will be in line with the forearm.
2) At the predraw position, his arrow is off target and doesn't come on target until he reaches anchor. To achieve this, his draw hand at predraw is about an inch or two out of alignment (so that the arrow points to the left of the target a bit). As he engages his back and draws to anchor, he rotates his shoulders into alignment. Notice that the Adidas logo on the back of his shirt disappears. This is what the current US Olympic coach calls 'angular rotation'.
This video is geared towards Olympic/FITA style shooting but elements can be drawn from it and adapted for barebow shooting (string/face walking, gap shooting, etc.) or even traditional instinctive shooting. I have a slightly open stance, I also do a slight rotation of the shoulders, as well as an adapted FITA style drawing for instinctive shooting. The major differences between FITA and traditional for me are the canted bow and the higher anchor. It feels good to me and I've been seeing good results.