The Marble hexagon tiles are for the shower floor. The white subway tiles are for the shower itself, and will have an accent of that glass + marble tile that you see. What isn't shown is the bathroom floor tile Marble pieces).
Natural light is a major mood booster, not to mention a major selling point in any home. The warm kiss of sunlight indoors will make your space feel bigger, cozier, and way more put together than any dimly lit fluorescent light bulb ever could.