1st off, Looks really really good. Your use of gradients give it a very metallic feel and it also contributes greatly to gloss/reflection of light on some of the items in the picture hence adding another layer of realism to the image. A very good example of what can be done with a computer, mouse and Photoshop (Or equivalent photo editing program). An LCD Screen/DVD Player would be a great addition and I can only think of USB as another input at this point in time