I think if you were to raise your stirrups a bit, you could maintain a stronger leg over the jumps...I should think jumping in a hornless stock saddle would be heaps easier than trying in a western!hahaha... but yeah, I would definitely start with raising your irons a bit, and see if that doesn't help you break over properly, and keep your leg stable and underneath you!
Really nice looking horse, reminds me a lot of my first horse, and gave me that warm feeling. Your leg is sliding way too far back, and it is no fault of the saddle. I think that you could also give a bit more release with your hands.
Yeep, the main problem is your leg. Having your leg that far back has caused you to thrust your whole upper body over her neck. Its funny how having one thing wrong (your leg) affects the rest of your position. Oh and your not looking to your next jump :)
I would definitely agree with shortening your irons so you have a more secure base, it looks like you needed your hands to balance bacause you lost your leg. They look like they came up over the fence instead of following her mouth. Your horse is adorable by the way!
So, beautiful horse! What a cutie!
What I would suggest is shortening your stirrup at least until your jumping leg becomes stronger. Your hands could also be a little more giving because your horse will stretch their neck over the fence. Pretend there is a magnet pulling your hands and feet foward as you go over the fence. Keep your butt in the saddle a little more too, if you can. As the jumps get bigger, you should come out, but when they're still under a comfortable height, just use your rear as an anchor to the saddle, and lean slightly forward. That will also help you to NEVER ever lean to far forward and have some horse take advantage of that. Hope this helps. Thanks!