I like the calling pose, details and BG and would give it more room top and bottom. Did you lighten the eye? It looks a bit 'milky' on my monitor. A better light angle would have put this over the top for me.
Manos, the bird has the nictitating membrane closed.
Fill flash would've helped this image, wonderfull sepcies, colores, BG, perch and colors though.
Congratulations!
Here's an image that shows clearly what the nictitating membrane is, in this case, the Turkey is using it to pretect his eye while he eats. Hope it helps to show more clearly why the eye of Manos' Roller looks thta way. :)