Tutorials? (Patreon)

I'm planning to try and squeeze some time into making some tutorials for patreon. I was leaning towards doing colouring ones first. My vague plans are for a basic tutorial [ what brushes I use, basic steps for laying flats, choosing colours ], a hair+eyes tutorial [ since I take some pretty specific steps with those ], and a metal+textures tutorial [ since I constantly abuse that crap in the comic ]

Do you have any ideas for tutorials? Is there something you'd like to see?