painting underwater bubbles on paint tool SAI

A new and updated version of my now old as balls bubble tutorial. Now with shinier bubble and section on cel shading (and magical glow!). 

I hope you all have fun making bubbles, if you use my tutorial please do link me to what you made because I'd love to see it!

All feedback appreciated.

Here are a couple of pictures where I used these bubble-drawing methods, if you'd like to see them in context:   

Other Tutorials: