render a beautifully detailed floor treatment of an outdoor shower featuring large basalt tiles in soft grey tones with natural stone texture the tiles maintain their current pattern a circular cutout in the tile pattern filled with grey gravel matching the basalt tiles in tone adding a gentle contrast ensure the gravel has a subtle rawness against the smooth floor tile emphasize a serene and calm atmosphere with soft lighting highlighting textures and patterns without harsh shadows the overall scene should feel tranquil and harmonious perfect for an outdoor shower
