This was taken on a photo workshop with Dr Alex Mustard, using an off-camera strobe technique to light the diver and inside of the cavern, using only a hint of foreground flash, sufficient to trigger the main lighting.
Shortlisted!

Angelfish, Nikonos RS, 50 mm lens, 2 Ikelite SS-200's shot with Kodachrome 64 film.

Fireworm on a coral at Witch's Hut, Bonaire. Sealife DC1000, no flash.

reef scene. San Pedro, Belize. CAnon Ixus 980 & WA20 Ikelite.

Turtle head, shot on Kodachrome 64 with a Nikonos RS, 50 mm and 2 Ikelite SS-200's

This image ws taken at Santa Rosa Wall, just more proof that the clear and warm water enable the sponges, corals and soft corals thrive. The colors are fascinating and this part of the wall is an awesome dive.

Yellow stingray. Bloody Bay, Little Cayman

Fortunate to find a spot below a peacock flounder to get this eye-level shot. Sealife DC1000 with single strobe.

Barrel Sponge and Diver taken off the East end of Grand Cayman. The sponge was almost directly under the dive boat, so it was simply a matter of camping out with the camera set up until a diver dropped into frame; which one duly did.

Green Moray in his Cave. Dive Site: Andrea's Guánica Puerto Rico
I use Nikon D80 18-55 lens with 2 strobe ikelite DS 160.
Shoot 1/45 sec. at f/11 ISO 100.

Yellow sponge. Turneffe atoll, Belize. Canon Ixus 980, WA20 Ikelite & Inon D2000.

Sea Fan with lit coral behind

Stingray during sunrise shoot
Shortlisted!

flamingo snail on soft coral,

White Frogfish on a sponge at Capt Don's Habitat, Bonaire

White Frogfish on a sponge at Capt Don's Habitat, Bonaire
I apologize to all. Don't know how the same image is entered here three times. Have asked to have two removed.

Camouflaged flounder fish in sandy bottom. Dive Site: Crash Boat in Aguadilla Puerto Rico.
Nikon D80 With 105mm Shoot 1/15 sec at f/27 ISO 100.

Pristine Star Coral showing its beauty. Dive Site name Fallen Rock @ Guánica Puerto Rico.
I use my Nikon D80 with 18-55mm with 2 ikelite strobe. Shoot 1/30 sec. at f/9.5 ISO 100.

Eyes, eyes...playing with movement.
Shoot 1/8 sec at f/19. ISO 100

Close encounter, St. Thomas

I really like this because of the colour the small wrasse add to the shot and the trajectory of the shark - as if he is launching himself over the reef.

Lobster taking sun @ colorful wall.
Shoot with nikon D80 with 18-55 lens. 2 strobe ikelite DS 160.
1/30 sec at f/9.5 ISO 100.

Spotted moray. San Pedro, Belize. Canon Ixus 980 & Inon D2000.

Flamingo Tongue..... Nikonos RS 50 mm Macro and 2 Ikelite SS 200's shot on Kodachrome 64

sail fish in dark color mode

Love between three, Aguadilla, P.R.

Cabo Rojo Lighthouse was constructed in 1882 by the Spanish. Once you climb the hill you can enjoy breathtaking views of a beautiful crescent shape bay beach with calm, blue clear waters.
Shoot at 1/1000, f/11 ISO 400 with 2ND filter.
Nikon D300s