User blog comment:Neowitch/New Shichibukai/@comment-1454981-20111115152016/@comment-3986064-20111115160738

And can you be sure that Oda might still be kept that animal theme?

I'm not completely sure, now Luffy's attacks have gotten that theme from what we can see. So maybe Oda doesn't allow a theme to be used for two groups of things a the same time. I don't really remember all the themes of groups and etc., but I can't get in my mind a theme that has been used for two groups till now. perhaps you could tell me otherwise...