tiles versus glass

You all do such beautiful pieces; many of them seem to use primarily stained glass either cut or shards. Can you share examples of vitreous tile pieces? I am new to mosaics, learning as I go for sure, but am having issues with using tile in backgrounds. It never looks right to me; seems to have too much texture and competes with the main design. I have tried to be sure the colors are complementary. What am I missing?
Love seeing all the creativity! Sure is helping me get through this winter.