Hi, For a start my recommendation would be to take a look at the SketchUp-Artists page. There you can find plenty of descriptions on different techniques and styles. http://www.sketchupartists.org/ For example have a closer look on how Oliver Shea does it: http://www.sketchupartists.org/tutorials/the-quasi-clay-style-by-oliver-shea/ For sure you need to learn on how to do a line overlay: http://supodiumforum.websitetoolbox.com/post?id=1578151 If you want soft lights and shadows (like in the second picture on the floor) you need to fake them in Photoshop or you have to employ a rendering software... happy if this helps alex