Undergraduate / I'm a very outspoken person; About myself-Present and future goals [6]

I think that the sentences are choppy and the ideas are just being listed. I do not see who you are! Talk about yourself more than the university. The University people already have information about themselves. You can do it!!! I have faith in you.

Undergraduate / 'intellectual freedom' - ''interdepartmental concentration' Brown + academic interest [4]

It is hard to cut down the number of characters. In the second short answer, I think the first sentence is weak and kind of pointless. You can say:

"My curiosity of the world led me to an interest in physics and economics."

Undergraduate / How A Book Influenced You -- The Game -- Brown Supplement [5]

I really like what you wrote. I think you should just submit it. The third paragraph does a good job of setting up your encounter with Rebecca. Return me the favor with my thread titled: PLME Essays Fall 2010.