Also on these boards
questions about elements - How much do you remember? This site has quite a few resources for quizzes /tests/ lessons etc
Mind you, if you're a Drawing student and you learn how to perceive negative-space, and you take into consideration your format (maybe by using a viewfinder) these will come naturally. But remember "Form follows function," and good design should 1) Capture attention 2) Hold attention and 3) Direct Attention and your compositions will have impact and be effective.