The blue tit is nicely detailed but the noise of the background spoils the full enjoyment. Also the foreground twig is a little intrusive.
The modification I have uploaded was done as follows;
Duplicate the background layer and apply either average blur or gaussian blur to smooth out the digital noise. Mask or erase the blue tit and then merge layers.
Select clone tool and carefully clone out the foreground twig and other areas which detract (bottom right and top left in my opinion)
The modification was carried out in a few minutes and needs a little more care and time to create a seamless image.
Hope this gives you an idea.