I think if I had to do it again I would take a lighter "base" image at twilight and let the stars shine through just a bit, rather than having a primarily dark sky with just a hint of sunset. It turned out pretty much like I planned - maybe some more clouds next time for something more interesting, and less air traffic gosh darn it!
|Layered and adjusted image. It would be more whimsical without the planes!|
|Basic star trail image, about 270 frames with Canon Rebel XT, colors and contrast adjusted in Photoshop|
|Base twilight image, original color, 18mm, ISO 200, 5 sec, f/4.5|