How I color eyes - Paint Tool Sai

Hiii everyone, sorry for being away!! TT^TT I'm really really busy this summer, I hope you will forgive me! ç W ç
I've made this step by step to show you that I'm still alive... XD
I often change my way to color eyes, but this one suit me better right now! ^__^

I used Paint Tool Sai;
INK PEN for lineart, white lights and flat colors
MARKER for shadows
AIRBRUSH for shades