Although Normally,

painting in only black and white,

 with just a touch of colour, when in Milan, Italian artist Francesco Camillo Giogino, also know as Millo used both red and greens to highlight his works, His most recent mural is titled In Bloom,

 I liked this one using part of the unpainted building a as part of the scene,

and this one where he uses his name on billboards as in Bat Milo, it still amazes me how an artist can upscale an idea to fill the side of a building, amazing!