http://www.lioncrusher.com/wolfsrain/
http://www.animecubed.com/galleries/wolfsrain/
Had to look them up. That's all for now...
How about trying some Japanese sites? They somtimes offer nice pictures... And some of the fanart can be great.
http://www.b-ch.com/contents/wolfsrain/
http://wolfsrain-union.jpn.org/ this one is for a BBS board and such, but the opening page has a nice fanart picture.
http://www.amazon.co.jp/exec/obidos/tg/detail/-/books/4063491617/250-9989024-9279409 has the comics and you can order ad ship to the United States in English. The books with shipping should cost no more than about $10. They only have two comics avaialable and a OST soundtrack.