Sunsets are difficult and while it would be tempting to blame the metering system, most of the blame belongs to the subject and part belongs to our perception. The photo below looks pretty much the way I remember it and strangely enough did not require much attention in PP. Might I add that it was done using automated exposure (Av) with multi-segment metering, auto white balance, and zero exposure compensation. It was truly a no brain capture taken quickly before the boat disappeared down the way.
Pentax K-3, Sigma 17-70/2.8-4 (C)
This next was taken from the same dock twenty minutes earlier and while I like what I got, I remember the colors being a little more dynamic. I did not do much at exposure time, except review the histogram, figuring I could do magic in PP.
Pentax K-3, Sigma 17-70/2.8-4 (C)
A few words about doing "magic" in PP. If one wants to boost color in PP, it helps to have the desired color to boost and not have the boost throw the rest of the image off. I really like the mother of pearl look and figured that throwing crimson onto the sky would be out of character. Instead, I just waited for the sun to go low enough to fully develop the color that might be had.
Steve