Here is the last of my points for today...ill give more tmro ->-

In contour drawings crossing lines is one way to indicate this

What should you do before editing a photograph? tag the photo. filter the photograph. change the iso setting. save a back up copy.

Afilm, like any other artwork, can never be totally understood and appreciated through critical analysis, no matter how complete or astute, although such analysis can open up new levels of meaning and appreciation for the sensitive viewer.