At the sign of the dot bomb as a strap line only works if there is a bomb replacing the letter o in com. Without this (your design foesn't include .com or a bomb) the strap line does not make sense. I am happy to drop the bomb (corny pun wholly intended!) but if so the strap line must go as well. I think .com should probably feature in the design
I think a white background would work better, although the finished design will need to work against the two backgrounds used on the site. Check out the Warhammer and the Warhammer 40,000 categories as the backgrounds are not the same. Warhammer uses a parchment design and Warhammer 40,000 uses a grid design more in keeping with the futuristic nature of the game.
I like both and the feedback I have had from customers who have looked at the competition definitely like yours the best. Could you add the registered trademark symbol top right of both images please?
Glad to hear you're getting positive feedback on these...I tried to give them the feeling you are looking for but without all the extra decoration. Simple and effective!