Irritation!

I've done this twice so far....and I've only finished two paintings in this series. So I shoot photos of them (painstakingly), and edit them, and then I realize there is an inherent flaw in the piece. Something so minor, but that will make all the difference in the world. These 'fixes' will literally take about 2 minutes each, and yet again, make all the difference. So the point here is that I had photos all ready and now I have to wait again, and shoot the first one over too....and reload it to everywhere I loaded it to in the first place. Backtracking, could I do anymore of that in life?! Geez.