Image Composition: Basic Decisions
Framing:
- Edge placement / Frame
- Include / Exclude
- Orientation | Horizontal / Vertical - Landscape / Portrait
- Background / Foreground
- Angle of View / Position / Perspective
- Balance
Compositional Elements
- Tone / Contrast
- Line / Spot
- Pattern / Repition

Guidelines of interest(rules of thumb)
Lens Selection
see: external links for additional resources regarding lens specifics

Other Links of interest:
Chromatics of The Analogy of Harmony