How about something like this? (sorry I played with your work a bit!
![Very Happy :D](./images/smilies/icon_e_biggrin.gif)
) I "aged" the red and blue a bit to give them a more retro feel. The belt's just a suggestion, you don't have to follow it, but try to add something to break the monotony of the midsection (adding stripes leads to a different kind of monotony).
I like the other style you posted too, though that might work for a totally different deck. I have to agree that the silhouettes don't really add anything to them. I like the visual style you developed for it, though. Kinda like space age Deco. I like the ace of clubs - you made it look like the front view of a three-engine craft. I don't like the "tail" you put in the suits, though. It's off with the Deco feel (looks more like Victorian wrought iron).