abstract architectural backdrop background barrier brick brick-wall bricks brickwork cement colored coloring colors coloured colouring colours constructed exterior external firm linear lines mortar perspective perspectives rectangular secure security smooth solid standard strength strong style surface surfaced surfaces texture textured textures traditional-brick-wall variation varied various wall walled wallpaper well-built appearance art-glass artistic artistry black color coloration colorful colour colourful contrast craftsmanship dark decorative design designed Designs distinctive frames geometrical glass grid-patterns grids lead light lighting patterned patterns rectangle rectangles reflected reflection reflections rippled shaped shapes stained-glass window angle angled angles architecture blinds curved curves decoration diamonds edges elements frontage geometric glass-panes lined panes round shape sunlight sunshine views window-frame window-frames window-panes windows appearances buildings business-district city commercial commercial-city-building contemporary contrasting distance distant geometric-shapes gray grey heights high high-rise modern office-buildings panelling panels unusual walls closed height open shade shadows building city-views construction construction-work crane danger distorted distortion distortions images sky skyscrapers straight tall work workmen corner clean curving