I wasn't really feeling this bro... There's a lot more in terms of sprite usage you could've done. I not that hard to make you own spites with the limited amount. Just cut them in pieces. Also, try to experiment with fight development. Make it lead somewhere in terms of the creativity. Try to incorporate a fighting style with each character rather than just using them to throw punches and kicks.
Movement: With your style, I've noticed that you haven't developed much with this, hear me out. There's always a certain stiffness to your movements. For example, if a character is in the air, you fail to make it seem like they are. Like, you don't apply the physics of aerial movement. If someone gets hit to the ground, they never just plop to the ground, add some bounce or at least make it clear. The double spinning bird kick was way too one-directional. Stuff like that is what I'm talking about.
Apart from those tiny things, it was good.
Fighting: Even with this being a short animation, there's a lot you could've added to make this interesting. For example, since we all know that Mortal kombat characters are known for the X-rays now, how about adding a little twist and making the Street Fighter characters do it. Stretch your imagination. Trust me, I'm a big fan of yours, you know this. We've animated together. I'd just like to see you do a little more. Getting projects out consistently is great but getting quality is better.
Can't wait to see more of your work man!
P.S. I need to talk to you about your art as well.