I had to do several curve layer adjustments using a blend mode of screen on each section of land mass.. Of course there was some mask feathering and changes in opacity to taste. I only did this for the internet posting as the original prints nicely with a clearly defined separation between the two land masses. I did a similar curve layer adjustment to the water because the darker blues act just like blacks. Note** When I use a curves adjustment layer and change the blend mode to screen, I am essentially gaining one full stop of light. I rarely, if ever actually make any corrections to the curve itself. If you find somethign is too dark, you can do the smae process but change the blend mode to multiply and darken by one full stop. It is a clever editing mode I use often. The key is to feather way on up in numbers...like 190-250.