I would love to know how you have added the "warm, low sun feel" to it. Would you mind sharing?
I started by adjusting Hue overall a bit towards cyan to compensate for the yellow cast later. I also increased saturation and contrast in the green channel. Then I made a mask a bit smaller than the land and reflection, inverted the selection and feathered the edges. Saved that mask for later. After that I made a new layer with a gradient from f6f6b3 on the right, about a third of the way up from the horizon to e4e4cd on the left, about a sixth up. I then used the saved mask to clip the wash layer so it left the sky and water unaltered. Then it was just to adjust opacity for the wash layer to taste. I flattened the layers and adjusted the white balance until it looked good to my eye.
There you have it.
If I had sat at the iMac instead at the laptop I would have just used the NIK Color Efex Pro Sunshine filter which does about the same thing, but I only have one license for the filters...
The reason for saving the mask is that you then can make an action that calls the named mask and save time when you have the same situation in several photos.