I took this on an afternoon dive yesterday on a shore dive off of Okinawa at about 40 feet. Originally I was after the photo as the Nudi was lifted off the reef growth and I thought it was interesting. In no way did I expect the Nudi to look quite the way it turned out...
That's great; looks like a grumpy old Frenchman with a feather in his beret.
Are you sure thats not a finger puppet!!! I don't think I have ever looked into the face of a Nudibranch