Great POV Steve. Couple things. Bring down the Haze density slowly to lessen the thickness of the rays....and also bring down the Half-Height of the Atomospheric Decay, that should get rid of the red (might tweak the density down also).
Try these water settings
Its a .pdf file to download
http://utenti.lycos.it/ggmez/index.p...=fileinfo&id=1