Yes a darker shade of blue works better
and good to know the colors can be changed easily, will allow for differentiating between world oceans and seas when you expand the sim.
I must say though that still pictures do not justice to the sea, the animation is really good and makes it so much more alive
One question, do you plan to keep the targeting stations in 2D as of now with the 3D window (Rangefinder) or will they be full 3D? I think 2D is good enough and makes for an easier layout of pop up windows for the computer, rangefinder, etc, allowing you to combine all those functionalities in a single place (More logical for a single player) but of course 3D is always somehow more immersive.