There is a serious body of work that has gone into this image, which is very well spent.
Sure there are deeper/sharper examples on the web, but gee....you gotta' dig
deep to find them.
I'd personally ditch the NB palette (ho humm...) and instead use it to enhance the RGB data. Sure, mother nature might look more appealing with some blush and lippy, but seriously, forget the trans look.
Well done