I charge 7 dollars an hour plus a 2-15 dollar supply fee, so the cost is based off of how long the drawing/painting takes and how expensive the requested materials are. For example, if you would like a colored pencil drawing of a disney character, it would most likely take 2 hours, and the price would be around $16. The size of drawing paper I generally use is 12"x12" and painting canvases will vary depending on what you request. I also paint shoes, which are $12 plus $6 an hour based on how long they take to paint.