Undergraduate / UC prompt#1 the unknown road [7]

I like your essay, especially your tone and easy style of writing. Perhaps you can focus more on what the question is asking, like which part of "your world" you want to share? Generally I think what you are writing now is about an experience or lesson you v learned. Try to tell the admission folk more about your feelings of two different backgrounds and so on.

Undergraduate / Which of these four topics to choose for UC prompt #1 [5]

Don't choose a topic for the sake of being unique. Uniqueness comes from your true feelings and aspirations, rather than a new topic or something like that. So I suggest to start with something you truly want the admission officers to know.

Undergraduate / UC Prompt # 1: World of transitions [8]

Good essay! I think it is wonderful, especially you focused on the word of "change". Perhaps you can improve with adding something that you have learned from the "changing world".