I'm an athlete(a good one at that), and I must say this impresses me. This character looks almost like a sprinter, he has a high knee action and he's toes come up almost perfectly, although I must say he stays way to long on the floor, making him look slow and he's legs come far too back which exerts allot more energy than needed.

I like this allot. 

 Very fluid. I really like what you've done with the cape.

looks good but he runs kind of slow. I jsut got back from a track meet and staring at it just seems like slo-mo xD;

I can see where your going with the leg animation by itself. Also, there is a pixel you forgot to edit out in your animation. I'm sure your aware of this though.

Looking smooth!

Although it just the legs - there should still be some up and down movement on the pelvis.

looks like guybrush threepwood from monkey island 2.

 Animation is really good but there is missing upper part of body :D Running legs without body - that´s strange character. : ))

Good animation