[@Magnato]: Please be more specific with your character's biography. What bog did she live in? How did she fare in terms of education?

As for the abilities...

Pestilence probably won't work like how you want it to. Most beings don't contain enough harmful bacteria for this ability to make a difference, especially for stronger creatures, and the life-granting effect is more likely to heal the target. I suggest that you either change this to an outright healing ability, or change this to a toxic energy that interferes with biological tissue and mana vessels.

Water Adaptation is a bit underpowered. I suggest you change it so that it allows your character to move easily in water and most other liquids, including viscous liquids. It would also make glues less effective against her.

Everything else looks fine.
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FYI, [@BCTheEntity]'s "GMPC" is going to be an antagonist, in case the character sheet doesn't make it look obvious. He's not going to be a true player character like everyone else, nor is he even going to stay with the party. I meant it when I said BC and I won't have standard player characters.