I've been working on this one for a few weeks. Been a long time since I've made a mosaic. It was groovy to revisit an enjoyable method.
This one measures 3 feet tall by 1.25 feet wide. It has a simply wood base that was treated before applying cement and tiles. I just grouted it up this morning while the sun was out for a brief period here in Seattle. (The photo is not so great. Hard to take a picture of a mirror without a reflection of something in it!)