Payment via paypal.
If you want to buy it, comment "I take it". I will PM you my paypal address, you send me teh moneyz and your reference sheet. I fix the scetch, show you, you accept or ask me to alter something. Finally, you accept the scetch and within to weeks you receive a fully coloured and shaded pic with background.
IF I FAIL TO FINISH THE PIECE IN TWO WEEKS, I RETURN YOUR MONEY.