Character Design
Since it is a flat style picture, I tried to combine the character style with the Japanese celluloid anime style.
In this project I tried to use a dynamic system, so I can try to start with short hair with a simple structure.
Character Modeling
Models in this style are quite different from other types in the face. I researched some models online.
The biggest difference is the structure of the eyes, which are not spherical in the usual sense. The iris part is a disc. There is no eyeball structure, and the white part of the eye relies on a concave surface to provide color.
The reason for this should be to make the model look in the anime style from the side.
Referring to this structure I made similar eyes. But how to rig the face in this kind of eyes is a problem.
The final model is as follows.