San Francisco Embarcadero Center Mosaic

Panorama built up of 6 images. Theoretically, could have simply moved further back to take this picture as a single shot, but that was not possible as there were trees, poles, medians, etc in the way. The difficulties in this panorama were the people, cars, and sky shading. Handheld shots, no tripod.
The Six 'source' pictures. Note the different perspectives of the building. Could have got by with only 4 pictures (4 outer corners) but the middle two pictures helped with the sky, and also helped deal with the cars, and with shading variations.