Persistent - determined to do something despite difficulties, especially when other people are against you and think that you are being annoying or unreasonable.
Introverted - more interested in your own thoughts and feelings than in spending time with other people.
Artistic - showing a natural skill or pleasure in art, especially being able to paint or draw well.
Eccentric - considered by other people to be strange or unusual.
Competitive - trying very hard to be better than others.
Sensitive - aware of and able to understand other people and their feelings.
Empathetic - able to understand how somebody else feels because you can imagine what it is like to be that person.
Definition of charming from the Oxford Advanced Learner's Dictionary[