The only criticism I can give is that both feet shouldn't be touching the ground at the same time. Take a look at some Olympic sprinting in slow motion for reference. To me it looks like your character is just posing in place.
Everything else is impressive though! :D
The pose is not well executed bit I was looking at a reference and the front feet is not touching down, I think the effect I did there makes it hard to read, Thanks for letting me know, I'll try to fix it later. :D
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