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From kingofmycastle@gmx.net:
The question is what happens if I draw a dice from the bottom?

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From tek@evilsuperbrain.com:
The ground's a bit low res, but the tower's great.

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From tony@awmcs.net:
The mood of this image is sort of humorious. 

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From bfranke2@home.com:
I am not sure just what you are striving for here, so I 
don't know what to say.  I do like the castle, it's an 
interesting idea.

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From ZenPsycho@yahoo.com:
I like the water in the foreground, but everything else is kinda plain. 

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From youknow@ucan.foad.org:
You named your duck? Hehe. 

I do rather like the tower of dice. The scene seems a bit
bland otherwise.

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From peter@table76.demon.co.uk:
I suppose everyone's mentioned MegaPOV's trace function already, but it'll
tell you the height of a point on a heightfield (or anything else).

I like the little dice you've used.

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From delfeld@mailcity.com:
(Please see the 'additional' comments, as I do not have the time left to write individual ones.)