UT Austin Studio Art's Porfolio for Transfer

Hello guys, I am preparing to apply for transfer into College of Fine Arts with Studio Arts Major in this Spring
There are some things that make me nervous.

The first one is a portfolio. On the website, they described only 2 in 12 summited works have to be from observation; however, they do not say any further detail about the other 10 works.
Could you who got accepted into Studio Art Major advise how these works should be?
If possible, could I see some sample portfolio or some work that helps you transfer?

The second thing is the résumé. Is it an important factor? I have only a few volunteer works and nothing more.

Finally, the admissions require two essays. How many words do they need to have? And could you give me advise to write a good essay?

Thank you so much.