Oh, these poor girls~ My heart breaks for them: Watching Cecilia struggle to cope with her pain and trauma, only to be ostracized and met with further punishment in reply, hit painfully close to home, as did seeing Bernadette shutter away all of her emotions to try and protect herself. That is to say, the character writing is very strong here~
And the art is so charming! The heavy use of red and blue tones in particular was quite clever, dovetailing nicely with the recurring theme of the red ocean versus the blue sky~ That's making no mention, of course, of the delightfully expressive character art, both in the face sprites and the CGs, heheheh.
Excellent work, especially for a first VN!