Your animations are pretty good, it is a nice assets pack, however, the spritesheet is too big and characters inside them are too small in comparison.
I had to scale the spritesheet x4 and x8 to actually get a good resolution and keep the quality at 100% on browser (I'm using JavaScript).
I'm thinking about buying it to create a multiplayer online game on browser, however, the idea of scaling all manually is a little bit tedious.
You should also add some background in the future!
P.S: you should have a Twitter account too, to post updates and more.