Maybe the ice became a little to green, but IMO, the greyish ice looked a bit
like overcast sky.  

I also added some smaller pieces of ice, but i don't like the way they look,
have to try something else.  

Furthermore I tried adding reflection to the ice texture, but the speed got very
slow (about 5 pps for the bottom part), so i did not use it for this render.

As usual comments are welcome, there is also a larger version available:

http://www.schunter.etc.tu-bs.de/~chris/arctic_a07.jpg

--
Christoph Hormann <chr### [at] gmxde>
Homepage: http://www.schunter.etc.tu-bs.de/~chris/

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