Aha! ok, with that knowledge I gave it a second try. It need some more mechanics, like an arrow can "bounce" in a metal object so you need to aim correctly to hit the target. Polish the game mechanics you can have an interesting concept!
I think this asset is underestimated! Barrels could explode if you throw arrow with fire. If you want to release a game for real and want some brainstorming feel free to reach me. I am happy to help!
