I wasn't sure if others in my field charged different prices to different clients. I try to keep it fairly consistent, because the last thing I need is one client somehow finding out they were charged twice as much for the same work. If McDonald's on the other hand wanted their CEO done in pencil, well, I'd definitely charge more than my usual rate. They're McDonald's, they can afford it. Plus, the portraits I do, I won't give a client a commissioned piece if I feel I've failed at being a portrait artist. I'll redo it. Did one commission over about 3 times before I finally got it right.
Doctors heal you, Artists immortalize you.
"Those who can, do. Those who can't, teach" - bullshit.
The usual staples for anatomy: