Double Exposure

I created this image by first exposing the picture to the background, which is the driveway and the trees, and I exposed the picture a second time with the picture od the dog before putting it into the developer. The focal point of the picture is the dog. I like the look of the double exposure but I wish that it wasn't so dark and you could see the dog better. I think if I played around with it more then I would really like the look of the double exposure much better.