What a fun little mosaic! This is Stabby, my younger daughter's spirit animal, so to speak. She has a thing for unicorns, but not just any kind of unicorn. She refers to them as stabby demon horses; hence, the name Stabby.
I wanted to make a custom mosaic for Allison for her birthday, and she really wanted me to recreate her unicorn (below left) in mosaic. The more I thought about this, the more I got excited about it. We decided that I would make a mockup to explore the effects of the black smalti against a white thinset background, and if the white of the thinset is what she wants.
Allison is a software engineer for Apple, and she is also a writer. She created the pixilated unicorn, shown below on the left, as a logo for herself, using a 16 x 16 grid. Below right is one that I modified and that she has approved.
Her original does not have an eye and she is still thinking on that. I tried a red eye, and a few shades of gray. Then, she suggested one that is the same as the cement. To avoid the mess of putting the white cement into the black square hole, I created a little cement cube.
I'm thinking of working within the pixilated format, in 1.5" or 2" squares. This would yield a 16 x 16 grid of 24" or 32" square, respectively. Then a few inches around the grid for the thinset background. Within the grid, the unicorn squares would be various textural patterns in primarily black glass. That's the thinking right now anyway.