Simple designs, such as Shaker or transitional. Chrome faucets, towel and grab bars, shower rod to reflect light. Larger tiles on walls and floor, mirrored medicine cabinet measuring 16"x 20" minimum, if space permits. Single handle faucets to provide a more open space atop sink and in tub area. If you pick floor tile with design that "flows", have it installed such that your eye follows the pattern from the doorway to the tub or back wall. If you build a "shower niche", note that it can be centered above the tub, but may collect more water from shower head spray, as opposed to if it is placed toward rear of shower space. Look for simple wall tile design to keep the eye "moving" and to facilitate clean up. Installing LED lights with dimmer on either side of mirror reduces shadows. Having ceiling exhaust fan with LED light, and small, recessed LED light above shower area will make the room appear much larger. Place a small simple plant in room to provide a "spa" effect.