That definitely was a beautiful sunset! Did you use Auto or Manual (Pro) exposure settings? I am assuming you were using manual since the exposure did not seem to change much as the camera panned from the sunset to other views.
Surprisingly, I have found that in daylight shots I seem to get better results by leaving the camera on Auto rather than on Manual (pro). So far for me the Auto setting seems to produce better dynamic range than the Pro setting does. I haven't flown my NEO at sunset yet but this would likely be not be the case in a low light setting like in a sunset/sunrise.
Thank you for posting your video as it helps me to see what the camera is capable of and what its limits are. So far I have been very impressed with my NEO. The price to value equation especially for the FMC is amazing.
Chris