Thanks for your feedback and I really appreciate you taking a deeper look into it.  When I get the opportunity I'm going to try working on it myself and see if I can make both feet animate properly.  I don't really have a lot of experience with animating at all so the feedback is extremely helpful.

I mean that only the right leg is really walking. This is not uncommon and done more often to save frames, but the walking would look more natural if both legs would alternate!

 EDIT: I just opened your animation in an editor and I see you tried to have both legs walk properly. It doesn't really show so well because the animation only has one bounce per two steps then, so my eyes see one relatively slow step instead of two really quick ones!

EDIT2: I tried to fix it with a double bounce but that makes it look really awkward because the legs are still totally weird... :/

 I'm curious, because I used another animation as a reference to study while I worked, what about it is fake?  I'd like to improve it if that is really the case.

I like this animation! Now that I see the feet are faked I can not unsee it, but before that it looked great ;)