You answered your own question, yes the lighting is unusual there and sunsets also can be used to make unusual funky skies which I used to my advantage so the icebergs would separate from the skies. If I had shot the #1, right when I saw it, the sky would have been the same color as the berg. By the #1 one the Smithsonian photographic competition and all of them have been exhibited in many galleries around the world.
I will take your response as a problem with emails, that you can't have a real discussion with emotions and come to a conclusion. Because, if you had checked my background of what I have invented in photography and what I have done in photography you wouldn't have ask a question like that. I don't mean that to sound ego driven but I have worked very hard to get where I am. Tim
Beautiful work, but I find the color balance, like the pink sky, distracting. The light in Antarctica is so unusual. Did you shoot a gray target to use for WB? If not, you could try to find a neutral point to balance to, though that can be very hard in images like this.
My favorite is image #5, where the composition is so strong that it doesn't need the strange colors to excel, followed closely by #4. I think I would like #1 with a different processing treatment but, again, the color on this one detracts for me.
I've got a bunch of Antarctica stuff, at http://jfiddler.smugmug.com/Antarctica-08