There is a 50/50 policy. 50% down and 50% when completed. I will e-mail a photo for approval before the work is completed to make sure it is what you wanted. There are limits to how much changing can be done without incurring additional charges. With the larger sizes I will take three equal payments with 1/3 down. The only additional charge is for shipping, eg $18 for 11 x 14 which includes packaging.
I also offer framing of your art, ask about cost. Watercolor and pencil require mat/mats and glass which increases the overall size but not the price of the art itself.
Please contact me with any questions.