Check this guy's work Koen Demuynck. Some of his work is here. His work is overtly manipulated digitally but it provides an example of how it can work when done well. He is a very successful commercial 'photographer' blending commercial advertising and surrealism. Some very impressive work, particularly like the one of Father Christmas. The lighting is quite profound...because it is commercially driven and digitally manipulated doesn't necessarily take away from its inherent creativity for me. The humour in some are just priceless!