Amazing! I've already started using it and doing some tests. It would be great to add a few more items like the hammer (to be able to 'acquire' it during the game), a simple UI with life indicators, and a basic UI to display inventory items. For a start, I think it would already look great to maintain the standard of your abilities.
I had another idea, I'm not sure if it fits into what you have proposed. Since there's the furnace and the anvil, it suggests not only decoration for a blacksmith, but also crafting possibility. Since we have stones to break and drop items, we could have icons of new hammers, pickaxes, swords (for example), with their respective animations and different colors, so that as the game progresses, there are obstacles that require better tools.