It would probably describe her emotions and how she is feeling
It is the reflection of how you see yourself in different stages of your life, which changes with the passing of time. Also physical changes will gradually start to appear.
The frets could be somewhere alongside the neck. Some diagrams are in favor of vertically oriented, rather than horizontally. But they function the same way, just turn it 90 degrees clockwise. So, the answer is fretboard diagrams can be oriented vertically or horizontally.
