Ok, to start, I DO like your Sasuke sig. I think it works with this theme more than the Roxas one because the red background is more fitting to his character than the blue to Roxas and because the red is dark enough that it doesn't fight for visual dominance in the image. The light swoop you have across the top also works due to the fact that Sasuke's name is in white as well and is long enough to help balance out the lighter portion of the pic. With the Roxas image I think the idea was sound but unfortunately it needs some adjustments to work for this new character. The blue is a tad too sharp and bright and is thus overpowering the viewer as soon as we look at it. It's sort of the first thing we see when we look at the sig. The strange design over the top of it doesn't help. It's a bit distracting. The image of Roxas was really well done though. You separated it well from what ever stock you got that from so it really could work well with a different background. It sits right at a good spot between the top and bottom edges of the sig and should stay right there in my opinion. If you make that background a touch softer or perhaps something less overwhelming, then I think you've got a solid start here. Instead of making the light swoop across the top the way you did with Sasule, perhaps you could find a different way to bring in that element. Maybe a vertical swoop on the opposite side from Roxas to balance out his image without hiding it. That would also give you a great place to put that text. The lighter area would help the text stand out more and would give that light part a definitive purpose for being there. Try making the name larger as well. It gets a touch swallowed in all the rest that is going on.
