Although this obviously very talented artist only has two images in his Renderosity gallery, they are both exceptional. Winter Light is one of the best 3D winter scenes I've ever seen. The light, in particular, is masterful. It draws your attention to various parts of the image as if it were a story. In fact, one wonders who lives in these houses and how they are coping with the obvious snow and cold. I also very much like the color choices and texturing.
Please take a moment and visit cihanozkan's gallery. Although it's small, it has some masterful 3D work.