Anna,
I thought about taking a similar shot like this a few days ago (May 26, 2004) but got to the lighthouse too late. The sun had set. So like any other photographer, I did the next best thing and took pictures anyway in the darkening twilight.
http://www.pbase.com/image/29432663
Your pciture reminds me of the 1958 Platters hit:
Twilight time
"Heavenly shades of night are falling, it's twilight time
Out of the mist your voice is calling, it's twilight time
When purple-colored curtains mark the end of day
I'll hear you, my dear, at twilight time.."
