My immediate reaction is “WOW”
I like the shots alot, the Turtle is my favorite.
What f/Stop did you use, there looks like a great DOF
Something you may also want to try is adjusting the DOF, so the subject becomes the focus a bit more.
For instance on the Lion Fish the foreground is almost too clear and sharp and can distract from the subject. I like the Lion Fish being off center like that, but the foreground draws some attention away.
That being said I would be very happy myself if I took these shots - more just some thoughts going on to consider down the road. .