I now know that having a drink the night before does not allow one to successfully paint the next day! I only had one spritzer (Tuesday night) but found my hand was so shaky I could not hold the paintbrush properly (Wednesday). I only have about one drink a month, so this was definitely not right time, right place!
However, after a day of restraint, I report that the gold leaf has stayed on and I have made some progress with painting the motif. Here are two more progress pictures for your perusal: