SAO eye tutorial part 1

This features the: Lineart, Selecting, Flat colours and Shading. To find out how to add the lights please see the next part!

I tried to make it as detailed as possible to make it easy for people who are perhaps new to sai or aren't as familiar as others. This is my first tutorial so if there's anything you feel I need to work on when making these let me know. 
I only included the iris, I was too lazy to draw the entire eye and I did this while I had a little time to spare. I might make a video to back this up, what do you guys think? 

Part 2:

If you want to see any more tutorials drop a comment below and I'll see what I can do about it