Here's a really cool effect for you to try with one of your images.
This photoshop tutorial will show how to make your subject look like they're coming out of the photograph just like this image here
or perhaps even something like this one here
The fact that I can only find two examples of this kind of thing on Dreamstime would suggest that there's a market here for this type of image?
Give it a try and let us see what you've done.