Moonlight Bow

I wanted to tell a story with only a weapon and without a too much realistic render.
In a post apocalyptic world similar to Horizon Zero Dawn, Alan Sullivan is the hunter of a small village. He always has the bow of his family on his back and a strange crystal attached to it. When the brightest nights come, Alan goes to sleep and puts his bow away but the crystal starts to glow in the moonlight and calls Alan in his sleep.