As I always say, it's all in the light; or in this case it's all in the lack of light with a bit of side lighting!
Canon 5d Mark III with the 500L f4 lens with the 1.4 Extender II handheld @ 1/1000,f5.6, ISO 400 +1 exposure compensation. Slight crop for composition purposes. A couple of small branches cloned away.
Cheers,
Mike