Nice start.
Art is nice and solid. My main criticism is there's very little feedback for the player when important stuff happens. For example hitting the trees doesn't do anything until they disappear. Having the tree shake a little when hit and/or spawning some leaf/wood particles would help tree chopping feel more like it's doing something. Same for entering/exiting the water.
The Game Over seems to be bugged with no obvious way to quit or reset the game without a hard refresh or closing and reopening