overwatch building, stylized, exterior, architecture, in watercolor gouache detailed paintings, insanely detail, artstation, 8 k, futuristic, big medium small, arcane, simon stalenhag, food stall, interesting shapes & form, golden ratio, hard surface, props, lots of decoration and furniture, megastructures, floating city, tree and plants, solarpunk, japanese downtown, utopia, kitbash 3 d