Character render by Nelson. I think he/she rendered it from this picture :
http://gallery.minitokyo.net/view/300205

Background by me.

Brushes from Obsidian Dawn : spanish moss n water.

n for the wall, I use pattern on blending option in Adobe Photoshop cs2 program.

Btw, Zero looks shorter than Kaname in this picture. Hmm ... I never pay attention about this before. I thought both of them have the same height.