Very interesting concept! Very nice graphics and I like how you've created a bigger flame that makes you stronger, gives the game game an extra touch. Simple idea, but there is so much that you can create from this, many different levels etc.
I don't know if you've heard of Game Development World Championship before (gdwc2019) but it's a competition for indie game developers where they can submit their games and it's free! It's great if you want some more visibility for the game and it only takes a couple of minutes to join :)