the acrlic layer failed. i was able to peel it off to the canvas. it tore the silver leaf. why? i sealed the drawing with egg yolk. egg yolk layers will accept thin oil layers, as well as, additional egg yolk layers. for up to 6 months. acrylic must be kept below the egg yolk layers: fat over lean.
either it's time for me to mix up some egg tempera or pull out the oils. either way it is time to paint. and the failure of these paint layers have a lot of potential.