Brit6x6 and Equina both had some good advice, I thought I'd just add to it:
- Keep your wrists in a straight line with your arm, don't break the line between your elbow and the horse's mouth. Thumbs up!
- When you're jumping, don't drop a shoulder over the fence, that does effect the horse's balance and might encourage an undesired lead change. If you're not asking for a lead change, keep both shoulders up and on the same level, don't interfere with the horse's shoulders. When asking for a change, make sure you're not interfering with the horse's shoulders, and make your cues as invisable as possible. (commenting on pic #8)
- In pic #2, your heels aren't in line with your hips, make sure you keep the nice line that you have in pic #1.
- Keep the nice flexion you have in pic 1, the horse is behind the vertical in pic#2.
- Think of there being a star on your chest that you want to show off - keep your chin up and shoulders back and show off that star. Eyes up and looking where you're going, not down at the horse!
All in all, you're doing well, there are just little things to work on to polish your image and overall effectiveness :)
You have a nice hip angle for HUS. (Blu, this is where you thought she was leaning too far forwards, she's not .. that is, for HUS - you want about a 30 degree angle, almost a half-two point.)