My one major complaint: Olana looks older then the mom despite being her daughter. My personal suggestion is just change her to being the Aunt/ sister of the mom or half sister since they do look very different. It would be a lot less work this way and you just have to change a few lines of text, versus changing her model and all the current images.
Also the Protagonists eyes look cross eyed most of the time. I'd leave the images that exist as is for now, but something to consider as you work on it more.
Other then those two things though seems good overall, and looks like it might have an interesting premise!