New views of common birds are never boring. I like this one a lot!
The pattern of the grass in the background makes for an interesting photo. I might be inclined to clone the dark part precisely below the bird to match the rest of the BG better. The sharpness seems bang on the head, really nice details on the whole bird! Great pose and eye contact.
The light is a bit harsh, but I think it works! Might darken the top of the wings and the whites a bit more. There is a distinct line from your postprocessing on both wing tips, easy fix. Otherwise, very good job on this one!
Dan:
I have always liked the subtle texture/patterns of the female mallards, so happy to see one so well displayed. Do agree with Ivan's comments re: the lightness of the wings. I would also prefer a bit more room in front of the bird if available.