Congratulations on the release of the game! I haven't played classic RPGs before, but I have something to say. Personally, I would like more detailed, step-by-step training. I think that not everyone will enjoy reading the text. I would also like to be able to interact with the game via the keyboard, rather than clicking the mouse on the buttons on the screen.
I noticed that when you collect loot from the chest, you can't open the inventory. And there are no collisions on the right wall from the heart :)
Good luck with future projects!