I don't pay by the hour as some drawings can take days to weeks to do. I charge by the size of the drawing and how many people will be in it. However I can do a personal prize bundle.
A4 drawing with 1 person: $50
A3 drawing with 1 person: $75
A4 drawing with 1+ people: $50 an extra $10 per person that is in it.
A4 drawing with 1+ people: $75 an extra $20 per person that is in it.
Please remember that these things take a lot of time to do. My prices are quite reasonable.