Just pasting some links:

http://www.messe.gr.jp/chaos/kaigai_new/asian_comic/book.htm
http://w2442.nsk.ne.jp/~kitajima/bookpage/bp43.htm

(woah, WOG3 ada illustration book wan.. for sale.. ahhh.. where to get?? WHERE TO GET???!!!!)
uumm... there are some samples found in the first link.. uuuu...
looks at guidebook.. arrrr....

http://comiclove.tripod.co.jp/