rams I apologize for not noticing this thread earlier. I've been preoccupied with some personal stuff (death in extended family, children, stolen wallet). You've been well taken care of by others it seems.
I want to make some sort of witty dig on TS's missed-id but I'm drawing a blank at the moment. Not enough coffee yet. TS, that's the downside of being so right so often. You make one wee mistake and people want to pounce!
My initial comment would be something along the lines of nice job with the fish. I haven't done much fish work with my limited lens selection. I also have a royal gramma, so your subject is near and dear to me. That is one chubby clown!
Good clarity. Good sharpness. Good exposure. Good post processing overall. In my opinion, your contrast looks a bit high for the sideways clown. I might have also lightened the dark bottom a tad in the first two.
+1 for others' suggestions for more interesting composition than center placed subjects. That is something that I am working on as well.
I also would have cropped the tang / clown combo differently to feature the clown peeking out more. When one can discern a personality / attitude from a subject, I think it makes for a more impactful image.
You've done very well. A couple suggestions for maximizing visual goodness. You might consider more midrange fstops. It would allow you to use faster shutterspeeds and / or lower ISOs. With fish you are riding the slowest shutterspeeds one can use. It's working for you, don't get me wrong, just not all fish can be stopped with 1/60th. I see you are using 125th as well which is more typical. Low ISO helps with image quality by reducing noise / "grain". 400 good. 100 better (if you can use it, which is not always possible, particularly with moving subjects).