That looks awesome! I can't wait to see where it goes from here! It isn't much but I made this bow animation based on what you have so far...I re-designed the bow a bit and made the arrow visible whilst firing...
It would help me a lot if you did more effects like fire, ice, electric would be the basics but you can get creative with that. I plan to use everything I can
I plan to do effects after I release the update for the current sprite/tileset work...I have already made a few mock-effects for the player character (e.g. frozen) but they're still a way off...
I hope this helps!