First time homebrewing a build in pob. (Kinetic rain)

This is my first time using PoB to try and make my own build. Im attempting to go kinetic rain elementalist next league and this pob is what the build will look like "min-maxxed" any tips on additions or changes I can make to improve the build?

POB : https://pobb.in/yp6t98X0RF4Q