[keeperofdakeys]

For the night lighting on the Eiffel tower, this law is talking specifically about 'commissioned' work, where an artist is hired by someone else to take a photo. Normally the commissioner is granted unrestricted use of an image, but the copyright remains with the photographer. Before this law, another law must have made the copyright default to the person or body that commissioned the work.

For your second question, it was always the photographer. You gave them permission to take a photo of you (by word of mouth, or being in public). You never commissioned then, so the previous law doesn't apply. The eiffel tower is different because the owner of the work only grants the rights to take photos if the photographer agrees to a contract to their terms (I'm not too familiar with them).