Very nice composition and detail. Good color. Makes me feel like I'm holding the turtle and looking him right in the eye. I don't particularly care for the white border - kinda sticks out & distracts rather than supports, but no marks off for it.
A subject framed by itself. Interesting. Excellent clarity and color but the subject vs. the frame in a little to close IMO. The photo has a general pleasing feel to it and I think it is an excellent wildlife photo. Well done and good luck in this challenge. <8>
Good shot but with my computer screen, the browser window, the border, the outer shell, and the inner shell, theres just too many layers to look at, almost like Im looking at a dartboard or something. With the exception of my (mostly personal) vision problem your photo is excellent and deserves the eight I give it.