Not much to not like here Will. Exposure and colour on the bird is spot on. I like the way you have shown the bird in it's environment. Lovely BG. Perhaps the only nit is that it's a pity the feet are partially covered by some strands of green vegitation. No big deal though. TFS.
Well done on all counts. Plenty of room on the right for me but I would vote for a crop from above back to 3X2.
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Lovely shot Will I am sure you chose this shape because of the surroundings but if it were possible I think the only thing to improve it would be a 3:2 crop, the bird and surroundings are excellent but the bird is just a tad large in the frame for me.