Mosaic art is sticking tiles on different materials with PVA glue. Once you have it how you want it to look you grout it.Then the fun starts you have to get a cloth and wet it with water then rinse the tiles to rinse the grout off them. Then put it in a nice warm/dry, sunny and hot place to dry it. Then if you want to add details, put a plant and some soil in it. That's how to make a mosaic pot.