3 friends and I went on a road trip from Lincoln, Nebraska down to Key Largo Florida to do some diving and free-diving as well for lobsters. This was the first time I've used my housing in the ocean, I had only shot with it one time before in murky Nebraska waters. I was trying my best to not get backscatter in photos when using a flash, because I never really mastered that technique on the 2 or 3 dives I made with my Nikonos setup.
Let me know what you guys think I should do better for next time. I know the composition and photo content is lacking in most because I was so worried about having somewhat decent lighting. All photos with a 20D in ikelite housing with a Nikonos SB105 shot manually.

Spotted spiny. Taken while free-diving.

School of fish around a Brain Coral at French Reef, Key Largo. This was taken while actually diving.

This is one of the swim throughs on our French Reef dive. It was pretty cool. Being my first dive in the ocean, I was excited to do some different stuff like that. This is 2 of the 3 friends I went with on the trip.
Any comments/suggestions are appreciated. Thanks a lot guys.
Tyler