NES Boy's PD Sprites

[NES Boy]

http://img136.imageshack.us/img136/7682/bombmanpuattack5yg.png
Bomb Man's special attack as a boss in Mega Man Powered Up. I actually edited the first three sprites from a MM1 hack MIDI artist ShivakDrac made where Bomb Man is a playable character.

http://img73.imageshack.us/img73/1871/nesmegasheet2rv.png
An expansion to Mega's sprites from the end of the first NES game, inspired by Mega Man Powered Up. I haven't done the ladder sprites yet. Can anyone give me some tips on how to improve the Mega Kick sprites?

[Hobo]

Hehe, when Rock is looking up he becomes fatter, XD

[NES Boy]

Well, I had to edit that from Mega Man's MM4 sprites when he is looking up while a Wire is eqipped.