I would have loved to know when I run out of water graphically. I don't understand how fire propagation works and that irritates me.
The movement responds very well and the art is cohesive.
The fire is random, so it's not easy to figure out the next tree that's going to burn. In each level, if you increase the maximum number of fires and decrease the time that passes from one fire to another. You are right about the lack of notice when we run out of water. It forces you to constantly be looking to the left (ui).