This is Giants 1.5 patch that fixes the LAG ingame but it does change somehow graphics,
it does have a sky reflection on the sea and these far yellow light that is all brightened up the sea and view everything (sorry for bad english)
but you have see all in the pictures

Kabuto 1.497BETA
....................................................................................

And this is..Normal screen but with LAG which is Direct 7, on Windows 10 I have
i cannot play it, maybe I wouldnt lag on lower operating systems,
I believe i did play first time Giants Citizen Kabuto on Windows ME/2000 or 98
.....................................................................................
ALSO
.....................................................................................
I was playing main story line, came to Chapter with Delphy, her first Battle Mission, I HAD 2 BUGS-BLACK SQUARE LIKE MODELS AND BLACK SCREEN BUG IN SEA
THANK YOU ALL