I think the lack of responses is due to having to open each pic. Take awhile.
In the last two pics where you're riding the mare, those two pics show that you are not using your leg properly. You're pinching with you knee while the rest of your lower leg isn't touching the horse. Try thinking of it as hugging the horse with your legs from your knees all the way down to your ankles. Otherwise, you look pretty good. You're looking up, your back is flat and your release is adequate. Fix the leg and you'll be looking great.
You just have to see your distance...you don't have to like it.