I think Hester is a beautiful and kind women.

Beautiful:

In chapter 2, the author describes Hester when she just came out from the prison.

“The young woman was tall, with a figure of perfect elegance, on a large scale. She had dark and abundant hair, so glossy that it threw off the sunshine with a gleam, and a face which, besides being beautiful from regularity of feature and richness of complexion, had the impressiveness belonging to a marked brow and deep black eyes. She was lady-like, too, after the manner of the feminine gentility of those days; characterized by a certain state and dignity, rather than by the delicate, evanescent, and indescribable grace, which is now recognized as its indication.”


Kind:

As a mother, Hester protects her child, Pearl, all the time.
In the market-place (chapter2)
In the prison (chapter 4)

Hester makes clothes for the poor
In chapter 5

Hester fosters her child. She is a thoughtful and careful mother.
In chapter 6