lafaeil who? dunno who that is, never seen the anime sorry. (i got lots of wallpapers of anime that i've never seen before really, i just download them cos they're pretty.
as for the wall grav i got it from here, i believe someone else here posted this link before, waaaay back in this thread:
http://www.geocities.co.jp/Playtown/2012/saika2.htm