Meet Charris (share-iss) She's a supporting character and eventually romantic interest of my main character.
This is my first try at an essence map! Please comment and let me know your impressions of Charris and how I can express her character better!

Body:
Eyes:
The open ocean after a storm
Sunlight glittering on wave crests
Hair:
Color of a newborn fawn
Soft as gentle silk
Skin:
Shade of light cream
Lightly freckled by the sun
Expressions:
Birth of a new joy
Thoughts drifting through starlit skies
Manner:
Like a heron alighting in a pool
Like a filly venturing into the woods
Mind:
Clarity: still dusk after a swift downpour
Depth: strong roots reaching down towards life
Knowledge: an old, well-organized, and beloved library

Soul:
Like a deep, clear well, depths unstirred
Fears losing the love of the ones she cherishes
Spirit:
Loves like one with nothing to lose
Stands eye to eye with her deepest fears

She sounds like she is graceful in nature, but quite shy/slightly insecure. Clever, and beautiful. Is that right?

What does she struggle with, as in what is her failing/nemesis in life? Does she have a weakness?

Yep, pretty much!

Well physically she's weaker than most of my characters, though she's a decent rider. Mentally/emotionally, the point is that she is very strong and mature and wise (yet quiet), and grounds the main character when he flounders. Does that make sense?

Mm... she seems very nice. The only problem, I think she might be too nice – without the humanness of weaknesses, emotional and mental, she seems a bit flat to me.

There is really never a good trait that does not also translate into a bad trait, something for a character to struggle with. A character that is very mature, for instance, might have a struggle with being too serious about things and being unable to relax when she needs to – or, depending on the kind of maturity, the flaw might be cynicism, or too much of a belief in relativity and subjectivity in areas like morals, perhaps. Or a character who is very strong in the face of difficulties might find it difficult to be anything but restless in 'normal life' – or maybe struggles with getting too bogged down in the daily grind and never seeing beyond the end of her nose. Do you see how I mean? * tilts head *

I think if you expressed some of her failings as well, the X would be even more beautiful, with a little more balance.