You can tell with the lettering anyway - there is an effect in photoshop that gives this appearance.
But this analysis software is great!
Clearly shows the image is fake.
Mel, this isn't a dig, but why don't you chime in here - you are after-all the one who posted it and uploaded it to your website.
It will look better if you just come out and say where you got the image from or state you photoshopped it together.