Good work so far! The animations are all smooth, and the enemy variety is enough that each stage had its own challenges based on who you were fighting.
To get the gameplay a bit smoother, I'd say that crates should be breakable with a standing attack. They look the perfect height to be destroyed standing, but I'd miss, and have to remember to crouch and attack. It can put the brakes on game flow sometimes.
The core gameplay loop is pretty solid, though. Looking forward to what's next! I heard there was a more advanced build floating around somewhere...