Welcome to Gaia! ::

Your release looks okay to me. You don't seem to be impeding him. You do look like you're a little ahead of the motion and balancing slightly on your knees instead of keeping your balance centered over your saddle. Not throwing yourself onto his neck jumping ahead, only a littel bit. Your lower back might also be slightly roached, but that could just be the blurriness of the picture.
As for him, his front legs are neat and he's stretching willingly over the fence. He's still in the take-off phase, so it's hard to say too much about his form.

Overall, nothing glaring or awful, just a few adjustments that might need some polishing.

Of course, keep in mind, jumping is not my forte. wink I usually only teach very low level jumping lessons.

i may not be the most experienced with jumping, but i can offer some advice smile

heels down toes up smile try to stretch down your lower leg, push your booty more towards the back of the saddle, try and center yourself in it. (not too far back, mind you) and a little bit more arch in your back (not a ton, just slightly, bring your shoulders up) but you look really good! he looks pretty good too! from what i can see wink

oh and i would say your release is actually fine. try not to lay your hands on his neck and brace with your elbows (which i don't think you are doing, but i can't really tell)

but you guys look really great! how long have you been riding him?

The jumping ahead thing is hard to fix. It was my biggest fault when I was jumping. When I tried pushing my seat farther back, my butt hit the cantle. I can't seem to find a middle ground. It shows that you're working on it though. You're not over-exaggerating the fix and getting left behind, which is really good, and as far as jumping ahead goes, you're not bad at all. I would think about putting more weight in your heels and really work on keeping yourself from catching on your knees over the fence, as that's the main thing that gave you away as being ahead for me. But again, it's at kind of an awkward point in the jump. A few frames later would have given a clearer picture as to both of your form, catch him in the actual flight phase of the jump.