On ConceptArt.org, Mr. Oga said: "Basically, I use poster- color. Because as we have to paint much, we can't use expensive paint. Poster colors can show brightness or depth of color and, above all, it is easy-to-use."

Kazuo Oga - Background Artist Studio Ghibli

http://3.bp.blogspot.com/_Eiwce13X738/TVBBYR42uGI/AAAAAAAAJJ8/bKyhoJ0t8Vc/s1600/Katzuo_Oga.JPG

simple in tonal and coloristic design

http://jo678.files.wordpress.com/2010/11/oga_207.jpg