abstract appearance artistic artwork background bits broken chips colored colorful coloring colors coloured colourful colouring colours contrast contrasting design Designs display eye eye-shaped grouting irregular mosaic patterns shape shapes surface surfaces symbol symbols tiles expression symbolic variety various aggregates black decoration decorative designed detailed distinctive external interconnected interlinked light lined lines outdoors outside pavement paving rough segment Segmented segments shaped small style textured textures texturing square squares angles bits-and-pieces bricks builder builders deconstruction demolishing demolition disposable elements exterior fractured fragments glass leftover mortar old pieces rubbish rubble shadows Sizes sunlight texture unwanted used waste circle circles circular floor flooring ground-level