Photgraphing a dunnock in wintertime without anny sunlight gives you something to think about. Here I had to overexposure to get some detail in de photograph. I found it rather funny the way it came out.
The perch in the FG is very pleasing and the bird is well posed. Did you use Fill Flash? The high key effect is interesting here but I would have preferred not to have that divided BG. Moving to the right or left would have would have given you a more uniform BG. (Yes, I realize that it is a lot easier to think of this in front of a computer monitor:))