It's a nice idea but I think it should be reversed. The Superman emblem being all bright and shiny and the shadow looking like the Batman symbol since Superman is all about working in the light while Batman is all about the night, darkness and shadow.
*shrug* I just like to give out ideas if I think that they might be of use in some way.
But that's the irony of my situation: I have ideas up to my eyeballs but I don't have the skills or level of talent as a lot of the artists here on DeviantArt. I've come up with quite a few Amalgam comics characters or rather some redesigns and yet I can't draw them out the way I want them to look in my head. Know what I mean?