Nomi and Kaori colors (Patreon)

I have a hard time visualizing certain things and when done traditionally it can get tiring drawing one thing over and over. So here is some rough digital pieces to help figure out if I should change Nomi and Kaori's colors. Their original hair color was strawberry blonde, maybe it needs more strawberry! A second idea I played with in the past was giving them a brown/auburn hair color. Should I change their look or stick with the OG?