abstract blue colors drip glaze glazed pot texture textures wash brick bricks brickwork frame glass glazing house isolated light lintel white window background ceramic ceramics crack crackle crackle glaze cracks craft craquelure pottery stoneware surface vase city cover Edinburgh extensive protection railway roof station steps train daffodils appearance art artistic artistry bright color colored colorful colour coloured colourful colours decorated decoration decorative distinctive patterned patterns raised raised-glazing style surfaces tactile textured thick touch turkish