I was thinking recently about mastery. It takes people years to get mastery of any given task, or career, or athletic ability. I have been saving pieces for years to make a mosaic out of. I have another post about it...here
I hired Micha from Emerald City Mosaic to grout, because the mosaic took 4 plus hours and I wanted the end result to look great. He told me I had used the wrong adhesive. Who knew? So I made two and one half mosaics, because one fell off. Here is the one that fell off: