MN/PE2

Aside from the failed second rep, how does it look?

https://vid.me/muzc

 

Thanks!

look carefully to execution and then film the repetition. the movement starts with hands overhead.

Oh. He brought his hands to sides as an extra precaution to prevent use of momentum. How is the ROM and other form though?

The form can't be compared with the correct form if you remove parts of it. Remove momentum by slowing the correct form right down. This article applies to this exercise too:https://www.gymnasticbodies.com/proper-way-v-ups/