It's a late entry for Joey's challenge, but I love the idea: tangle a group of 4 tiles. Or actually, tangle 1 tile, duplicate it and create an ensemble of four 'mosaic tiles'. So, I tangled 1 tile:
and created two larger tiles by duplicating it. I found out the corners didn't line up very wel, but in the second larger tile, you don't notice it as much.
Joey asked us to use a hexagon shaped style. I decided to fill it with CO2, Navajo, Nzeppel, Spokes, Nymph and a pattern that I don't know the name of (at the bottem in the middle)