I'm not sure about some of the translations into English, but this site has a few treats for you. 'Drawings' are in fact 'diagrams', and there is a large number of low complexity Japanese style models present.
This amazing website is all about minimalist origami. Dinh is a master of creating sculptured origami forms with relatively few folds, but with a massive amount of expression. I wish I could wetfold even a fraction as well as this.
This site is in Japanese. Hiroaki Takai presents a colourful site with a lot of diagrams. There are many simple and traditional models, as well a healthy selection of intermediate level dinosaurs (which is never a bad thing). The diagrams are clear enough for non-japanese to understand.
This is a website linking to Hitatori Koshiro's Origami and translation work. Although the site is a little difficult to nagivate (for someone who doesn't speak Japanese), if you look hard enough, you'll find some interesting designs.