You're right that you're a bit too far out of the saddle in these photos. In the second set of photos, you're jumping ahead and "over" your hands. In the first set, you're standing a little too much in your stirrups, but you're not jumping ahead as much and your release is a bit better, although still a little restrictive.
You're going to want to practice waiting with your body at the jump. People find different techniques useful to do this - some I've heard of are thinking "hips back" over the fence, rather than focusing on folding into a two-point; as well as thinking that you need to "wait for the horse's hind legs" to jump. Your crest release is a little restrictive, ideally your hand will be slightly more forward to allow your pony to use her head and neck over the fence.
Your pony looks like she got quite deep to these jumps, which is causing her to jump over her forehand and hang her knees pretty significantly. Hanging knees can be dangerous, but there are ways to improve a horse's front end. Grids and gymnastics can help her learn to be quicker with her front end, and ramped oxers will encourage better form. Additionally, using groundlines may help you find a better distance and I suspect from a bit more of a gap she will use her front end better.