Her name is Rika (to be changed) she lives in a world where 90% of the world is underwater. Because of all the swimming she's done when younger her legs are quite thick. Her body is supposed to symbolise how she's ready for motherhood so she has wide hips and very large breasts.
The first costume is a bike costume. I have changed the thighs since then.
The second is a costume that she would wear later that combines the look of her first costume plus armour. The spikes on her head are supposed to look like antennas. Also the picture is the first time I've drawn on A3 a paper.

Yandere Simulator “Could Be Renamed”
Studio FOW Short Totally Tentacular
Phantom World Stretching Expectations
Charming Futaba Nendoroid
How You Wish KyoAni Made Phantom World…