I recently requested my first commission here and my part is done. Payment sent. The only advice I can give someone, especially a buyer. Be very specific about you want, don't assume someone can see your vision. Go into detail, and ask for a first sketch if possible. I didn't want to burden the artist at the time and make it more work, but I think it's a good idea. But also, as a seller: if the terms of the commission offer are something you can't do, don't offer. Even if, it's the payment method (like can't receive paypal), do not expect the buyer to be happy about it. You need to bring that up (and have a solution) before you are given the commission and give the seller a chance to decline. What I feel, is rather disappointed. I don't think, I'll ever do this again.