Seems like I've seen this guy looking pretty much the same way as it does here in other challenges before. It is OK but the colors seem unrealistic and set in post processing.
Definitely a component of many people's dark nightmares, so it fits the challenge. Would be nice if it was a bit sharper, but that's only a minor complaint - especially considering it's an underwater shot. Otherwise the image is very well composed with lovely saturated colours. Great shot - well done.