My first attempt at double exposures

So after seeing these double exposure images: http://www.facebook.com/danmountforddesign I found a desperate passion to create my own in my art folio. Over the past 15 minutes I've been fiddling with photoshop and seeing what I can create out of old images....obviously these are done rather quickly and the edit jobs are therefore very poor but the idea is there and I had lots of fun so I thought I'd share!