I totally agree. It's amazing how much mental energy goes into a good piece of artwork. I don't know how you do it quite honestly. I do my art as a hobby - as a way to destress. I have done a few pieces for other people and found it terribly stressful...I decided it wasn't worth it to me. I didn't want to become disenchanted with drawing because I was too focused on trying to please somebody else - so now I draw for me.
Your work is so beautiful though I can't imagine anybody being unhappy..This will be a wonderful piece.