It was a sweet, action packed and well illustrated story. With a simplified cartoon-esque style of art, using strong colors to represent the colors and keeping a rather mono-tone pallet for most backgrounds, allowing the characters to stand out. Though to keep this post as spoil free as possible I won't go into detail on the story line or events. Though the story line touches on some interesting concepts. Such as some of the following:
-What is the determination of Good and Evil?
-Can you be good and evil, or is there rarely a grey zone?
-Can one event affect your entire orientation on your stance of good/evil?
-What laws abide to each group?
-Can we be blinded by the "greatness" of the good?
-Is being truly good just being ignorant?
-Can you just be born evil/good?
-How much can you place your trust in the terms of good/evil?
As you can tell this very simple story really brings up some very deep psychological questions about the ideas of Good and Evil. I would go into more detail but I HIGHLY suggest you check it out for yourself. A fun, simple read (took about an hour for me), with deeper meanings.
Audio Track with book for first Chapter of Nimona:
First three Chapters of this light novel:
http://gingerhaze.com/nimona/comic/page-1
Good Reads review for the book:
http://www.goodreads.com/book/show/19351043-nimona