The scene is entirely done in 3D no additional 2D images were used. A clayrender is attached for those who might thing i just used a picture
Blender 2.73 RC1
Cycles Renderer (10k samples; 7h on GPU @2560x1440px)
Postprocessing: colourcorrection and a slight change of the chocolate colour.
Hope you like it
Although the environment looks to clean, I would add more grunge and grime to the tile materials, or if it is a clean place, maybe show evidence on the tile spec layer showing surface has been wiped off causing some water spots.