I really like the look of the branch, nice tones.
It's difficult to judge properly from the photo as it is quite dark, but it looks like a good painting to me. Photographing work can often be a problem as colours and contrasts are not always true to the painting.
If the painting in real life is dark it is no bad thing, because then it emphasises the light parts which means you can get good highlights. A little light in the bird's eye would draw your attention to him as the main point of interest.