I like the one on the left, the one on the right looks like it belongs on a floor not a shower wall. I’d do it all with the one on the left.

Omg I agree looks like a floor tile

Different tones? Different everything! You need to fix this or it will bother you every time you use the shower. I agree with the others, remove the tile on the short wall.

the left tile would look great on the walls.. i feel like the one on the right would be a great compliment, but on the floors..

There’s a lot going on, especially if the tile currently on the floor is what you were planning to use for the floor. I’d use the tile on the short wall for the whole tub surround. Then the one currently shown on the long wall for the floor.

If you truly can’t stand to rip anything out that is already placed I’d repeat the tile on the long wall on the floor as well.

They don’t work together. Pick the matte tile and rip out the glossy. Use one tile for both wall and floor. Matte is less slippery, so more safe for wet feet.