(Left)
FIgure: Kanade (customized) original: https://www.daz3d.com/kanade-8
Outfit: https://www.daz3d.com/japanese-school-sportswear-for-genesis-3-female-s

(Right)
Figure: Rin (customized) original: https://www.daz3d.com/rin-for-genesis-8-female
Outfit: https://www.daz3d.com/japanese-school-sportswear-for-genesis-3-female-s

Rendering result is post-processed with photoshop.