Quote - > Quote - Now maybe it's heresy to use a spot light for the sun, but if it looks okay to me, I don't see a problem with it.

Great tone and colour.  But the non-parallel shadows on the wall make it obvious you used a spot rather than infinite light.  Not sure what the advantage is.

The sun can cause non-parallel shadows. Uneven double planed glass, wide angle camera lenses, curved walls...

https://secure.flickr.com/photos/citadelmonkey/2750224736/in/pool-92891572@N00

https://secure.flickr.com/photos/lulatahula/2697745459/in/pool-92891572@N00

The effect is a bit severe in the render, though. I agree. But I'd have to re-render a similar set up to be convinced. Right now, I'm not inclined to bother.

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PoserPro 2014, PS CS5.5 Ext, Nikon D300. Win 8, i7-4770 @ 3.4 GHz, AMD Radeon 8570, 12 GB RAM.