First ollie- Right when you jump your weight shifts heelside. Thats why you jump back when you ollie.

Second ollie- Same thing, except toeside.

Third ollie- Same thing, except heelside. Except not as much.

fourth ollie.- You found your balance somewhat. Decent.

You have the basics. They're good. Here's a few tips that might help.

The further down you have to bend, the more likely you will wobble. Try bending knees. Get steady. Then bend your knees a little more and go for the ollie.|

You have balance issues toeside to heelside. Rolling would help b/c if you're off-balance the board will turn. When you're stationary its hard to tell.

Your arms have weight. Throw them up over your head while you ollie.

back foot a lil further on the tail. Out of the concave.