Even at the danger of being too prescriptive, I claim that a good micrograph is characterized by:
- Simplicity: simple pictures often have more impact, they are less confusing.
- High information content: this is the scientific content
- Originality: Ok, I will be flexible about this one. The are many great pictures of paramecia around, even though this pecimen has already been phtographed countless of times. The jurors of photo competitions do seem to take originality also into consideration, however.
- Technical expertise: this includes correct exposure, focus, contrast etc.