Hi Phishsense, Firstly, nice shot, i'm not saying i would do any better but here are a couple of things I would suggest, and these are just my humble opinions/ramblings. The shot from above would have been great, utlising the lines on the coral with the goby lying over them, alternatively from slightly below would have been good, even a little closer to the critter so he is bigger in the frame.
I also feel that the subject for the shot is too centered, a slightly more artistic crop, utilising the rule of thirds and/or some negative space would be great, however with macro work I generally prefer the subject to be a little larger in the frame see changes below one man's meat is another man's poison. The other thing is that slightly detracts form the photo is the backscatter top left that can easliy be cones out or sorted with the healing brush.

Again just my $0.02
Edited by Tjsnapper, 07 September 2008 - 01:48 PM.