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From irtc@tomandlu.co.uk:
A bit basic.

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From the_dark_allies@hotmail.com:

Interesting.  One suggestion I_d ask is to prevent keeping terrain so flat. 
Makes it look too CG.
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From gromit@ix.netcom.com:
interesting idea; ice cube is too sharp edged (maybe a superellipsoid)

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From skirsch@comcast.net:
Alaska is NOT flat!

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From mermster@gmail.com:

YEAH!  ALLEN RULES!
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From j.a.bremer@student.tudelft.nl:
Maybe it's better to put all your time & effort in one image instead of
submitting multiple images.

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From file:
not very realistic