Credit to @fastchrisuk for the following shot as this is Chris' setup. We wanted to do a double exposure image and fit my silhouette into the CPU of the circuit board, and to get a decent sized setup, I thought it would be a good idea to be knelt rather than standing. Backlit with an orange flash and smoke, this was shot in one photographic exposure, this is NOT a Photoshop creation..
Equipment Nikon D600 & 16-85mm lens
Thanks very much for looking,
Kind Regards, Neil