Form looks good - maybe try dropping your right elbow to get it more in line behind the arrow. It looks like you have a bit of bend in the left elbow, which is fine, but probably nocks off a bit of draw length. (I shoot with a bent elbow as well unless I am in Target Recurve Mode.) It looks like you have a good dynamic (push/pull) release. I wouldn't worry too much about thinking you "should" shoot a certain draw length because of your height. The main things are consistency/repeatability, how good it feels, and how accurate you are. There was a thread recently about this same sort of thing, and that poster got much better accuracy with a longer draw, but that has not been the case for me. I seem to get my best results at 26" with a longbow/selfbow.