Hi guys,
Please let me know what you think of these animations! I'll probably submit them as is to the PJ challenge, but I'd love to learn from your advice and try to make this better.

Idle

Running looks not so good to me, but since I only show it a split second in the reel I thought I'd get away with it.. But why is it that it sucks?

Jump

Fire

Oh and a general question: How do you guys deal with afterthoughts? Every time I open the editor I see a new pixel that I want changed, but then I have to go and alter it on an increasing number of frames as well which slows down my process a lot!