This VN needs some background music or ambient noise, and sfx could be added like opening doors and using keyboard etc..
Personally I dislike that your sisters don't look like mom, maybe Rachel a bit.
At some point story got on rails and there was no choices anymore, like around day 8 to day 16. Haven't finished yet. Looks like if you miss some choices, the person becomes irrelevant and just "vanishes" from the story.
Otherwise pretty decent VN.