Good looking bird, nice detail and sharpness captured.
I would recommended cropping this somewhat tighter in front and top. Always a problem with dark BGs, dark bills get lost. You could make a selection of the BG and lighten it up somewhat.
Another lovely capture Willem. Robert has a good suggestion re: lightening the bg to separate the beak a bit. I like the chosen comp but also see where Robert is coming from. I think by going close to a square crop you put the eye in the upper left power point getting rid of the empty space. Well done.
TFS
Todd
For me I like the image comp as presented - but Robert's suggestion would work too. I would clone out the spot on the perch in LRC. I like the dark BG and would not lighten it. A little thing I like to do with dark bill on dark BG is to lightly dodge some of the contour of the bill...here it would be the top edge...it is subtle but makes a difference.
I just used the dodge tool (soft brush, range set to midtones, and opacity at 8%). Work at high magnification (so the bill is the only thing you see) and select a very small brush size to paint just the very the top of the bill to lighten it a bit. Hope this is easy to follow...