I always thought a more appropriate name for these guys would be "Marsh Sparrow", but this one was found near....a swamp!! Deasturated the leaves which were way too bright neon green/yellow out-of-camera. I like the hint of habitat those leaves/twigs bring to this image. Also toned down a few bright distractions in the BG.
I really like the pose and the log perch, and the foot position and details are nice. But, the light is a little harsh and the BG a little busy for me.
Considering that this was taken on an overcast day I'm surprised you think the light looks harsh? Perhaps the image as a whole is too bright, I will revisit the RAW file and tone it down some.