My one can retire now XD
If you can Bend the Stick that Hold the String, it would look even better, And when you shoot, you an make the Rotating thingy at the back to the reverse direction
This is Way better than mine, but if you can add some fancy thing in your animation, it would look even better
Check out my Ballistia Model's Attack animation and you'll know what i mean, even though mine is little crude :O