Really amazing aesthetics, great lighting effects. Just had three points I would improve.
The first is that this is a top down where you can move and enemies can come from all directions, but the character can only face left and right. I think the player should be able to face up and down as well.
The second is an extension of that, as I had some issues with the colliders as I wasn't entirely sure if I could hit monsters on top or below me, or how close I could get, so got hurt or didn't hit monsters when I wasn't expecting it. I think the colliders should be a bit more forgiving in that regard.
The third is I felt the mouse controls felt unnecessary. I think it would be better served with strictly keyboard controls, with a button to attack.
Overall really nice, well polished game, these are relatively small issues in the larger scope of things.