abstract appearance backdrop background cascade cascading color colour drops gray grey rocks solid spray stone stone wall stones stonework surface surfaces textures varied water water spray waterfall wet architectural architecture colored coloured covered covering polished shaped shapes Sizes smooth smoothed strength texture tiled tiles wall wallpaper asymmetrical black blend brown collage diversified irregular Mineral montage mosaic ore pastel pattern patterns pebble plain rock structure structures unequal unsymmetrical white close-up Dirt feel garden garden pebbles pebble patch pebbles river rocks rounded shiny streaks veins angles colors colourful colours design designed feature light light-feature lighting modernistic patterned unusual variation wall-feature rain rain drops feature-wall stone-wall water-feature water-spray