abstract appearance artificial artistic artwork backgrounds coloring colors colouring colours crater crater-like dark image imaginary imagination imaginative kernel large large kernel large nut make-believe moon-surface simulation moonscape-like nut representation Somber sombre surface adansonia gregorii Australian baobab Australian boab barrel trunk boab boab tree bottle tree brown-gray brown-grey cream dead rat tree deciduous distinctive flower flowers fruit furry gadawon gouty stem tree grotesque indigenous Kimberley native road verge shape slow-growing smooth bark soft fibrous wood trunk useful verge water retention white bush-tucker cut-open dried dried-out exterior food food-source hard seed-pod shell dessert France french market nougat nuts pistachio sweet