You're right, they're a little fuzzy and I'm no help whatsoever with the YouTube issue.
But, from what I can see, you're jumping ahead of the motion. I like the pictures in series! You can see how the initial jumping ahead affects the rest of the jump. In the first picture, your crotch is way ahead of the pommel and there is not enough angle in your knee and hip. You're almost standing in your stirrups, rather than bending at the hips and waiting. In the third picture, you're already almost back in the saddle, while your horse is at the apex of the jump. The fourth picture has you sitting even further down and your horse is just coming over the apex. The final effect is on the landing. You don't have anywhere else to go with your body to absorb the landing shock, so you have to lean back slightly, straighten your leg and you're back to standing in your stirrup - your heel is way up. Your butt is at the back of the saddle. Landings are always not the best picture op, so I know it's a awkward moment.
I think you might give more in your release, but it's hard to tell. Rizzie has very nice form - nice, tidy and square in front. I like the flat picture. You guys look very together and forward. Very nice turnout.
I hope you get the video up - I'd like to see it!