The problem with this image is immediately evident. About 1/3rd of the way from the right, the sky becomes a different shade and the clouds blurrier. That's due to the Hilton on the left. The Hilton is a large, white block reflecting a TON of sunlight, which altered the sky's color for the individual jpgs that included that structure. The sky on the right third comes from at least one image where the sky is the predominant aspect, so it represents what the color should actually be.
Unfortunately, that major problem ruined an otherwise fine, but boring, photo. How could I have avoided it? I should have metered the sky and then used the auto exposure lock button for a row of images of just the sky; then photographed the Hilton in a separate group; then photographed the triangles by the convention center in a third group. That would have metered each of the image's components properly and results in an image that was properly metered from side to side.
So, today's photo stitching tip: imagine the final image and then scan the scene for metering issues. Use your camera's exposure lock feature to photograph each major component at the same setting. The software will figure out the placement, in all probability. If not, some minor fixes can be done. We'll see those tomorrow.
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