The Eastbank Esplanade or waterfront of the river in Portland is a great walk. There are many runners and bikers but also many couples who are there to enjoy the beautiful sunset. This photo was taken as the sun was setting in the west with Downtown and The Pearl District in the background.
It is important to balance foreground light (key light) and background light when it comes to sunsets. The easiest way to accomplish this is to carry around a flash to light the foreground. It is important to make sure to have a way to defuse the light as it will overexpose the foreground. Shoot in raw to later balance the light in post production.
Camera: Olympus OMD EM5
Lens: Olympus M. Zuiko 17mm ƒ/1.8
Filter: Hoya HMC Cir-PL
Post Production: Adobe Lightroom 6
Any questions? Comments? How in detail how this photo was taken? Feel free to ask below.