I'm going to start showing my progress on double framing some of them are going to be short because I'm just going to focus on movements.
CnC pliz :^]

-http://sta.sh/02fnrebxf4sm
-http://thebestg07.deviantart.com/art/double-frames-02-591019718?ga_submit_new=10%253A1455564156
-http://thebestg07.deviantart.com/art/double-frames-03-598522308?ga_submit_new=10%253A1458786212
-http://thebestg07.deviantart.com/art/Double-frames-04-616821672?ga_submit_new=10%253A1466543189

Looks alright. He should have lasted in the air longer after that kick. The movement in general feels kinda stiff and lacks easing and anticipation. Flow feels a bit forced.

The problem with this is that you forced yourself to use double frames only. One should utilize different frame timing to create the desired effect, which varies from animator to another based on style and technique. Using a constant frame timing makes the animation feel monotone and "dead".

Good effort, keep practicing!

Quote from Salt

Looks alright. He should have lasted in the air longer after that kick. The movement in general feels kinda stiff and lacks easing and anticipation. Flow feels a bit forced.

The problem with this is that you forced yourself to use double frames only. One should utilize different frame timing to create the desired effect, which varies from animator to another based on style and technique. Using a constant frame timing makes the animation feel monotone and "dead".

Good effort, keep practicing!

Yeah, I mess up the momentum, I get what you say, Thx
Finished second practice!

The third one is the best imo