Since no one else has commented yet, I shall give you some advice! I think it's cool that you're making a paper for a series that hasn't been used much, I'll give you that! I think if you want to use these images, you should try to vector them so that they are clearer and usable. :) Even at this small resolution, the images are just way too pixelated/low-quality to use to make a wallpaper. Learning how to vector is *very* useful if you can only find small or low-quality images of less popular anime series, so if you want to learn how to use that, try the Vectorness group tutorial thread!

It's a bit hard to do, but it would definitely pay off. Other than the images, I think the text you have makes it a little bit too busy. Maybe just keep a title or two so it doesn't distract from the image too much. I hope that link helps, and good luck on finishing the wallpaper!

Or how about keeping all the text but moving and twisting them around in a cool manner so as to place the centre attarction on the two guys?

I agree with the vector, and they're painstakingly long to finish but you're rewarded with something much more when you show-off your work. So go ahead and give it a try!

Oh and the borders on the top and the bottom would look nice if they're closer towards each other (stretched more to the centre) and much lighter/darker than the background. But that's just a personal opinion :3

Grea work, keep it up!