I wanted to use a stencil to create a repeat pattern on each tile.  I started with every other tile on the front two rows one night...making sure the stencil is secured, rolling with a roller that is not overloaded with paint, and cleaning the stencil between each tile.  Then the next night did the remaining tiles on the front two rows.  The following night I trimmed the stencil for the back row, painted every other tile.... and so on until every tile was stenciled.  My OCD kicked in the next couple of nights, after work while watching TV I would grab a detail paintbrush and clean up each of the stencil lines.  Keep in mind, I did all of this during the pandemic shutdown, so I had plenty of time on my hands.  Once I was burnt out/satisfied enough, covered the stenciled tiles with a protective matte coat. Letting each coat dry, I believe I painted five top coats to protect all of the painstakingly detailed stencil work.