Andreas Weissenburg (grubaluk) is a mixed virtual and real life builder who is both one of my favourite renderers and one of my favourite designers. He doesn’t fail in either regard with this beautiful rendition of a working BR 78 DRG tank engine. Not only is it an absolutely excellent render but the model itself stands amongst the best. The use of the top hat is particularly clever.
I also highly recommend going on a good perusal of Andreas’ Brickshelf account.