Here are the rules.
Guidelines
Prohibited
No NSFW. If you find it NSFW then I find it NSFW.
No mech/robots. If it's simple enough, you have my permission to try and persuade me.
Nothing that is offensive.
Shipping characters
They must be an appropriate age for each other.
No incest.
Nothing abusive in nature.
Anything else?
Consider my work more along the lines of portraiture commissions; portraits are what I'm good at. The main focus of the piece is generally the person that's been requested. I am, unfortunately, not a concept artist, a vector artist nor a logo designer. Keep that in mind.
Be descriptive: who is it, what are they doing, are they from a certain media, etc. Include reference photos if you have them. Even so much as a scribble can help establish the composition of the commission. You can also request your original characters (OCs). You must include reference photos for OCs.
There are just some things I may say no to. Maybe I forgot to write it here, maybe it makes me uncomfortable, maybe it's out of my skill level, or whatever.