It’s a well made game for being your first! Much better than my first game :). I liked that the player rotated around, it is a cherry on the top making it more fun to play! and i like the effect when you shot the gun, that was cool.
The feedback I can give is that when the same sound is repeating, like the walk animation, it can make the players ears tired becuse it is that same sound over and over again. Try to switch between two sounds or change the pitch alittile bit randombly for each walk. That will make it so that is sounds like multiple sounds and less harsh on the ears.
Overall a good game for being you first!