/me wonders whether the copyright extends to very precise drawings of the Eiffel Tower at night. Some drawings are close to photo-realistic and will look exactl

/me wonders whether the copyright extends to very precise drawings of the Eiffel Tower at night. Some drawings are close to photo-realistic and will look exactly like a photo when presented at the lower resolution used on the web. If such a drawing looks just like the real thing it will therefore be indiscernible from a photograph. Would such an image be subject to copyright claims? What if the artist switches around a few details, some braces which go top-left to bottom-right in the real thing go top-right to bottom-left in the drawing?