Click on image for a better view:

I have blown up a section of this fake to show you why, with experience and the right tool (a 10x jeweler's loop), it is fairly easy to detect a fake image. Notice the weird colors and the very obvious lines running through the image itself. If you see these, the image is a fake. Real albumens have an egg shell "crackling" and a consistent even color. I have provided an example for you to look at below.