Hello Adam,
So here's my second try following you comments. I've select the mountain using the magnetic selecting tool (I'm using a french version of Photoshop, so I'm not sure I'm translating right) seting feather to 10pix. Then I've adjusted the levels (I got lazy and use autolevels). And to finish, reduced cyan saturation within the selection.
How do you like it? IMHO it looks less real, but maybe that's what you looking for.