Wow; I really like a lot of these and can tell you like to use anime for your banners ^.^
I am not into anime besides pokemon but i really love your style
The only critique I can give is to try and size some of them down, The first ones posted are pretty big, but if you like them as is just keep em they look good.
Please make a tut! My style is complete opposite of yours and id really like to learn yours
++Good use of C4d and different colors, No banner looks the same yet you stick with your style. Good job!