Jumping animations

So far I have had two attempts at making jump animations. My first attempt was more of a quick go which is why it's only half done but I used it as a guide line for my second attempt as there are plenty of things wrong with it.

http://www.mediafire.com/?n3yohxff011dxs7

My second attempt is more better however I'm still working on finishing the landing.

http://www.mediafire.com/?zcbpzyb9okw6myr