abstract african African-style-village angles appearance barriers branches community cover covering cultural culture entrance entrances fencing intertwined logs path protection replica rocks secure security Singapore Singapore-zoo sticks style village weave wood wooden woven backdrop background bar barrier bars cage chalk color colored colorful colors colour coloured colourful colours decoration decorative draw drawing fence garden grow grown material multicolored multicoloured natural nature palisade rhododendron stake stakes structure structures texture textures timber wall wallpaper