To properly adjust the water and the sky, I made three separate layers. I made a separate clipping layer for the sky and the sea, so I could adjust them separately.
To make it look like a more sunny day, I increased the brightness in the adjustments panel under the icon “brightness/contrast.” I did the same thing for the water clipping layer to make the reflection match the brighter sky.
Important note: After adding adjustments, be sure to clip the adjustment to the layer, so it only the affects the layer right below the adjust in the layers panel.
Computer Graphics: Molly Brennan 