I've been going nuts making paper terrain lately and have ordered probably 30 3d paper models from this site including most of Dave Graffam stuff (awesome), Fat Dragon stuff etc. but these amazing hills just blew my mind with their ingenious design. I had a blast assembling them and spent 5 hours straight at it having a ton of fun. It's really clever how the designer put these things together and the textures were kick ass. Love it!