I'm guessing there's a lot of symbolism going on here, but I haven't been able to piece it together. Why does she not like dry land, the loneliness up there compared to the ones she met underwater? What were the dark figures in the trench, anxiety? Why do the first two underwater screens infinitely loop horizontally, implied drawing in?
Besides those bits of confusion, the dialog is cute and often funny, plus had a great atmosphere to set the tone for any given scene. It also looks quite nice throughout as every area's graphics and layout feels fitting.