Photography is an act of love.
Always shoot it now. It won't be the same when you go back.
I don't see light as something that falls, but as a positive force.
You have to pick the right tool for the point you're trying to make and there is no one solution.
What you're shooting at doesn't matter, the real question is: 'Does it give you joy?'
Since the background is as important as the subject, you mustn't let it default by chance. You must control not only vertical and horizontal, you must be aware of the depth of field (or lack of it) that you want in the background.