gringol,
Sorry, was going to reply sooner but got distracted with other "stuff." Overall, your form looks pretty good, I like your bow arm side pretty well. The only thing I would recommend you work on is that you are not getting any back tension on the string side. See how your string hand flips out and down on your shots?
This tells me that you are pulling the bow just with your arm and when the tension is released, the arm muscles are causing the "flip." You might try to relax your entire string arm and pull only with the back of your shoulder and your back. Have you tried a formaster? That will give you a great feel for a correct draw. For me, when I draw correctly, it kind of feels like I am leaning back against a wall as the arms come to full draw position.
Arne