My AP World teacher graded it and gave comments on it.
I recommend that you do not deviate from Princeton's guidelines otherwise you are not following their instructions and might get dinged for your submission. Unless I'm mistaken a practice DBQ is not a graded written paper, it's sort of a hybrid presentation not a pure example of expository writing which is what they are looking for.
(copied from Princeton's website)
Guidelines
We ask all students to submit a graded written paper for consideration as part of their application to Princeton.
When selecting a paper to submit, please keep in mind the following guidelines:
The paper should be writing done for an academic course, preferably an English, social studies or history course, during the last three years of secondary school, including senior year.
You may send a paper, essay, research paper or essay exam. We are interested in seeing expository writing only, not creative writing.
One to two pages in length is sufficient.
The paper should include the course instructor’s grade, and comments if your instructor provided any.
To keep this community safe and supportive: