It was a 1Diii and 100-400LYour welcome. Quick question - what camera was used for this picture?
The idea is brilliant but the downfalls are the composite as neither images match, the butterfly being in focus with the hand being oof.
Butterfly might be better placed on the knuckle where its hand is sharper, though effect wont be the same. Composites are not easy as the images used need to be made to match for it to look realistic.
Again wicked idea and it could really work with some different images.