Amit the big thing I see with this capture is that its leaning to the right. I allways have the same problem. It is a really good night shot though.

If you have Photoshop 11 (CS4), the Ruler tool (in the Eyedropper tool's drop-down menu) manifests itself as a small crosshair attached to a miniature ruler. I pulled a copy of this photo off Caedes and brought it up in CS4. Placing the crosshair on the bright white vehicle headlights on the far left, I then drug across the image to the lights at the bottom of that blue shape on the far right. This being a water front and looking like a straight line, I believe this is the best spot to use for this function. Even so, the shorter line of vertical yellow lights running up the side of the tallest building would work as well. Anyway, after drawing that line along the vehicle headlights across the bottom of the photo, I then select "Image" from the top menu: Image Rotation: then Arbitrary. The box that then opens has already figured out the angle -- 1.76 degrees downward to the right. I make sure that, in this case, the counter-clockwise radio button is selected, and click OK. Now I see the perfectly adjusted waterline but have some simple cropping to do to clean up the edges. As long as the photographer has Photoshop, it's incredibly easy to do and makes a huge difference. I would also suggest a tripod next time and set the shutter release timer for at least 2 seconds so there's no camera shake at all.

[I was just looking closely at the photo and realized you must have shot the photo at a slight angle across the water, perhaps at about 30 degrees to the right. That causes a natural upward drift of the horizon line. There's several remedies for that: 1) always try to shoot straight across so that your line of sight is perpendicular to the horizon line. 2) If you are a ways away from the subject, shoot as close to 50mm as you can. 50mm is as close as you can get to a natural image, the way a human eye sees it, and the lines won't be distorted and curved. 3) Use the Ruler tool on verticals like those yellow lights on the tall building. I just ran the ruler up those lights and Photoshop told me I needed an additional .68 degree to straighten out this shot.]

-Nikoneer