People who look similarly don't all come into this world with similar personality traits. It's just not the case that all Winters are born serious, focused and determined. Frankly, this kind of thinking sounds racist to me.
In a country where almost everyone has black hair, a cool skin tone, and brownish or black eyes, surely a good portion of those people would be some sort of Winter. Would that mean tons of people in that country would share the same basic personality traits? No. That's nuts.
Other people do sometimes expect us to have certain personalities based on what we look like.
For example,my sister is a Dark Winter. Growing up, people often seemed to expect my sister to be quiet, serious and determined. My son is a Light Spring, and people seem to expect him to be bouncy and cheerful.
But the bottom line is this: you are you.
Color analysis won't do a thing to reveal your personality to you.
It will help you see your true physical beauty, though. That makes all kinds of personalities pretty happy. :-)