There's something wrong with that image. The lower part is cut off. Obviously there was an error during the upload process. You should reupload it.

Its not an error its my fault, it is a table i changed the colour of the wood to black and added a black shader which should of had black wood with silver type grains in the wood, but it didn't render out the same as it looked in the preview window. You can slightly see it before i made the image smaller by turning it into a jpeg as not sure if renderhub likes 50mb pngs lol.  I would of cropped it out but its really only a test image as i want to create a vampire princess type character.