Thanks for your gifted advice, but I don't agree with your prejudice about the horizon line in perspectives. I consider the Gestalt perception always mandatory. Thanks, also for your witty lesson, for dummies.
Gilberto, I hope that you won't mind a bit of constructive critisism on this image. I've looked through your portfolio, and I believe this is one of the weakest images in your group. Many of your images are very nice and show excellent composition. This image is tilted to the right, and though the fence gives fairly nice converging lines with the horizon, the horizon itself needs to be level.
If you use PhotoShop to process your raw images for web use, there is an easy way to straighten your horizon. Under the eydropper tool, there is a measure tool. Draw a line across the horizon (I'd use the bridge). Then select the Image menu>Rotate Canvas>Arbitrary. The program will rotate the image and make the horizon you selected level. Then, with the cropping tool, you crop the photo to take away the white borders and make the image rectangular again. I did this with your image, but it cuts out most of the sky, so it changes it considerably, and you lose the sunset you wanted.
All in all, it was a nice idea, but I don't like the tilted horizon.
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