Thanks all for the warm feedback! I think I'm finally starting to get a handle of the 15mm even though I've had it for a couple years now.
@nomadkng The funny story about that picture is that my wife and I had a plan to take photos at a specific location during sunset. We were running late and were going to miss the sunset. I was so desperate to get at least one good photo before sun sets because we don't come to the area too frequently. While rushing to the destination, I quickly snapped a few photos hoping something would turn out. After looking at the photos on the computer back at home, I was like, thank god I took this one!