Between Sunset and Twilight

I drove cursing all the way through the best part of this sunset before I got home, grabbed the Lowepro and drove the few minutes back out to Lundie to shoot what was left.

Being rushed I didn't really get the most exciting composition. Looking back however, I really like light in this image, it was on the very edge of night, I think it was around a 15 second exposure, and it gave what I feel is a nice mix between late sunset and early twilight.

Any critique would be most appreciated!