It does not have a nice clean bg but at least there are no intersecting branches. I removed and toned down various bits and pieces and cropped to a more horizontal to remove other distractions.
50D, 500mm +1.4TC, 1/400, f/5.6, ISO400, EC +2/3.
Beautiful bird with lots of detail and very nice eye contact. It appears like the bird could be slightly more statured as it appears a tad light on my monitor. Well composed although I would take a little off the top and a bit more on the right to bring the warbler even larger in the frame. Many thanks for sharing.
The BG may not be "clean", but it is nonetheless rather appealing and offers a good glimpse of the habitat you found this warbler in. I'm just not crazy about the large leaf growing out of its head...perhaps darkening it a bit would reduce its impact. Good comp, and a perfect pose!
Here is a repost with the protruding leaf removed and a bit of sat. and contrast added to little bird. I felt a little uncomfortable about cropping so left as is.