Try not to mix and match pictures from different animes. All animes have a unique and different color/picture/clarity/etc. If you take two pictures from two different animes, they won't look well together. The background is, i'm sorry to say, a bit amateur. I think you just used a single filter on a gradient. You didn't bother to cut out the picture of the rabbit, and thus decided to blur the edge to try and make it blend. Try using the [i]Polygonal Lasso Tool[/i], if you have Photoshop, to crop out the background and leave the picture for you to manipulate. The red text is hard to read, mainly because red looks horrible on green/brown. If it's your first banner, it's very well put together. Nicely done for your first time. 6.5/20. Keep at it :D