Homestuck talk sprite tutorial

Warning, file is long.
So, I wanted to make a talk sprite for Vecisa, but I couln't find any tutorials, so I decided to start from scratch and make a tutorial for others. Please, do not look at my art for reference. It's not completely the 'cannon' style. Use one of Hussie's drawings for reference.
Here you go interwebs peoples! I mades a tutorial fors yous!

Homestuck belongs to Andrew Hussie.