As mentioned, I love the subtle light reflection of color from the neck tie to the chin. It also looks like some light shade of blue in the white part of the fox as well? I cannot wait to start playing with such subtle detail myself.
Again, because of the nature of the tattoo, I can only share what I think I would add, rather than what I would change: If it was me, I'd add more lines within the two feathers, with a darker green instead of black, and maybe with a 4rl or a 5rl instead of a 7rl. I feel the extra detail would add more character and balance.
Thank you for sharing! You continue to inspire me to work even harder so I can tattoo again.