I thought I'd have to throw it out and begin again, but I decided to experiment, based on Koo's advice that "there are very few problems that can not be fixed in Egg Tempera", so I plunged ahead and sanded off the several coats of gluey egg wash removing some of the background color in the process. There were several bare spots down to the gesso panel showing when I set up to fix the mess.
I spent all day on Sunday working on the painting. I couldn't duplicate the color of the background so I changed to a new color that I had ordered in dispersion form from Natural Pigments, Maya Blue...a lovely grey blue color. I cut new masks and out of acetate this time and could control the sponge a bit better this time. Practice, practice, practice.....she makes it look so easy. After about 20 more paintings I'll have it down.
Anyway, here is the revised painting. Perhaps a bit better? I love it still, but am afraid to seal it off with another egg wash. This one will probably just go under plastic glazing as is. It appears to be a little dark in this blog, but you get the idea.
Celebration of the Egg (Revised)