Gray tiles, Gray stones, Gray concrete

(normal quality), (low quality), (worst quality),lowres, text, cropped, worst quality, signature, watermark, username, blurry,skech,logo,blurry, drawing, sketch, poor quality, ugly, low resolution, saturated, high contrast, oversharpened, bad anatomy, worst quality,deformed, cropped, jpeg artifacts, error, mutation,noise,UnrealisticDream