Creating characters is hard. For some reason people have an especially hard time creating well-rounded female characters. Hollywood comes to mind here. Think of the female characters you know of. Chances are you can pigeonhole them into labels: the girlfriend, the trophy wife, the annoying one, the femme fatale.
Thus I present to you the female character flowchart. Take your character through the chart. If she passes the five basic questions, then she’s a strong female character. Congratulations! If she fails a question, then you get to figure out what type of character she is. I’m going to have great fun with this.