I like the blur effect you put on the image and the images you used were card renders which promotes a little diversity from the normal Ken Sugimori or Arkeis images. I also like the floating fighting symbol. I don't know why but it looks really cool. He should make more of these banners. What program does he use? I'm not sure if this could be possible with GIMP.
I don't know how to get a good font in GIMP. I might be doing something wrong, but it's hard to work with a text box in GIMP. The text in this banner though is really professional.