enclosed space red brick wall

abstract alley architecture artwork backdrop background blank blind block box brick bricks brickwall brickwork building cement clairvoyance claustrophobia clay composition concept construction corner corridor cube cubic cubical cul dead design designer detail details edge empty enclosed enclosure end face facet grid hole impasse inside interior light lines material oblong obstacle old passage passageway patchwork pattern patterns perspective point radiance rectangle red sac shape slab space square squareness straight structure tetragonum texture tunnel vanishing virtual vision wall wallpaper walls