Well. as the title says, i gave the sword a try
http://lfranl.deviantart.com/art/Swordtest-575964239?
i did that, i would like that you say what do you think. If is good or bad, and leave some tips to help me improve
(I know there is rezising, i'm trying animate without a guide line)

Stick to the guideline. There's no shame in using one. I still use it now and then.

Study the Terkoiz sprites to understand how recoil and anticipations works. Those are decent examples.