We are always our own worst critics. If the client loves the portrait and wants to bless you with a rather hefty stipend in appreciation, and in exchange for reprints, who are you to say no to it. I sympathize with your pain. I have two ruptured dicks in my lumbar and five cervical discs that are totally collapsed. I am possibly having surgery on my neck(disc fusion)to alleviate the pain. My pain mediation plan is a tad more aggresive than yours(morphine). Congrats on the bonus round and now, 'tis time to relax and enjoy life a little(as soon as the work is delivered).