This one was very lucky: I did not expect this lightplay on the sky. I was doing post-sunset long exposures when suddenly strange streaks started to appear on the LCD. First I thought they are reflections from the filters and almost deleted them! But then I saw them with my own eyes too. The last rays of the sun from behind the horizon probably met some mountaintops (Alps?) that made this shot really special (well, to me at least).
Ahh... Coming across this again in my random favorites section is refreshing. This is an amazingly beautiful shot, I thought I should tell you that again!