Firstly, I apologize for how late my response is. I really need to start checking DavoOnline more frequently again. Anywaves...
I certainly won't deny that this is an...interesting and potentially useful idea. I definitely won't be replacing the existing armor sets, as doing so would be detrimental for several reasons:
1. It would remove the existing texture options
2. It would adversely affect backwards-compatibility with existing creations
3. It would adversely affect cross-compatibility with Darkspore
That said, adding such textures as entirely new armor sets is a much more compelling idea. I'll have to think about it some more thought, as it would be a fairly substantial undertaking for an unclear amount of benefit.