|Greetings from the Critique Club! I would defintitely say this more than meets the challenge, as wildlife give you very little leeway to get good pics of them. It's minimalistic and as *found* as can get.
Having read your photog's comments, Ronnie, I am even more impressed by this shot - I've also been out at ridiculous hours shooting waterfowl during the wee hours of the morning. Wonderful capture and considering you had to shoot at f8 to optimize this lens, and you got this at only 1/500, helluva good job! Keep that lens handy in the future :-) The low backlight is beautiful, tons of detail on the bird and I never knew til now that there was indeed a crab in the shot. Again incredible detail. And knowing how hard it is to get a shot of wildlife, let alone cooperative wildlife...double kudos to you.
Nitpicks? Hard to find any except maybe clone out that dot of white in the surf and pop the low highlight in the eye, which would probably make it look a tad artificial....nah, just continue doing what you're doing. Looking forward to more entries from you!