Nice game, I liked how you implemented the main menu!
The art style was a bit of a mix, you had 2D sprites, a realistic grass texture for the floor, 3D low poly models and 3D voxel assets. I think it would've looked better and clearer if you chose a single art style for everything.
At first I wasn't exactly sure what the goal was and what I could do with coins, but it seems like it's just for scoring. Would've been nice to have a leaderboard so you can see how you did in comparison to earlier playthroughs and other people.
It was sometimes a bit vague how the coins worked, since they're sometimes 3D voxels and sometimes 2D sprites that were harder to pick up. They also seemed to disappear randomly sometimes. The axe animation was also a little slow compared to how quick the trees fell. The gameplay is simple but does get pretty repetitive after a while.
Overall with some more polish it could be a pretty decent game though, especially for your first released game. Good job :)