Underwater - Nudibranch

Nudibranchs may also be known as sea slugs though that name does them a disservice. They are a little more colourful & photogenic than a slug!
This individual was around an inch long and perfect for a tight crop with my 2:1 rig.
Unfortunately of the two shots I managed this was the best and in my desire to make a real tight shot, cut off a little of the LHS. So I've cropped tightly the other sides and hope that it doesn't detract too much. Comments?
Nikon F90X, Nexus housing, 105AFD + 2X converter, twin Sea & Sea strobes. EV100S.
Lembeh straits, Indonesia.