Great shots, but while I hate to disagree, I think this is a Juvie Coopers Hawk. I have done some really extensive research into this, and have seen both a Coopers and a Sharpie, which were unmistakably Cooper and Sharpie.
If you google Coopers hawks and then go to Images, about 90% of the shots listed will show a Coopers with the belly spots or teardrops in a vertical orientation.
Search for Sharp Shinned and go to images and about 90% of the birds shown will have a horizontal orientation on the belly spots. Among other differences, like a sleaker body shape, they perch leaning forward, not upright, and they have legs so skinny they have to tie knots in their socks to make knees. 
I attribute the other 10% as just wrong and posted by people who really can't tell the difference.