create a serene modern bathroom with a natural stone aesthetic complemented by a light cream floor incorporate a double sink with a sleek off white countertop and a dark wood cabinet below design a freestanding matte gray bathtub surrounded by smooth river stones adding a natural element include a large leafy green plant beside the tub for a fresh look position a horizontal wooden shelf with candle holders above the bathtub and a window with sheer gray curtains allowing soft natural light use black fixtures for a modern contrast and incorporate warm ambient lighting to enhance the cozy tranquil atmosphere