I'm normally fighting the whites so this is a first for me by increasing them. This Nuthatch seemed to have a dirty cheek and maybe why it seems duller than the brow...I didn't do anything to the whites during my RAW conversion. I also reduced the red saturation by -10.
Great pose! I agree with the reds, they ought to be complimentary not dominant. But I like the idea and some minor tweaks should improve this lovely image. :)