You're sure you haven't done anything wrong, but you don’t know whose side the law is on. Fret no more. If you are planning having that image put on canvas, check out these ten rules to see whether or not your image is a legal concern.
A UV Filter on your lens does act as a good protection for the lens, but beware of the cheapest filters. They can take quality away from that brand new lens you bought. Instead keep that lens shade on the camera...indoors or out.