It's not very complex and not my personal cup of tea (though I still love her) but it is a layered and three-dimensional personality.

She has motivations, dimensions, some amount of depth. I think she is.

I have written, in fact, an link about it. Honestly, it would mean the world for me if more people checked out and commented. I worked hard on it and very few people commented, which was disappointing for me.

Her overly optimistic attitude just makes her feel one-dimensional, at least to me. She never really reacts to her environment the way I feel a real person would. She has a lot of good traits, but I don't feel they mesh well enough into forming a three (or two) -dimensional character.