Stylized Procedural Eye Shader

A small experiment to create a completely procedural eye shader using nothing but a mesh with UVs and Amplify Shader Editor. The refraction effect inside the pupil is completely faked. The eyes are stylized in the sense that I'm not going for realism rather trying to get the most expressive eyes possible. The reflective highlight above the pupil is also exaggerated. I might add the option to have iris texture eventually.