abstract angles appearance architectural architecture background brown building color colors colour colours contrast contrasting corrosion corrugated corrugations dark decay deterioration elements external metal old perspectives rough rust rusty surface surfaces texture textures uneven variations wall wearing weathering bacon bake baked cheese cook cooked cooking cracked cracks crumbs crust cut egg food gluten-free homemade ingredients layered layers meal meat melted onion onions pastry pie slice sliced spice spiced spices wedge wedged wedges advice alert announcement appropriate-behavior appropriate-behaviour be-careful beware black care careful caution communicating communication cycling cyclists informing lookout observant pedestrians risk risks safety share sharing sign signs walk walkers walking warning watch watch-out white