Your ECs and essays sound good, and first gen student can help you a little bit, and your portfolio if it’s truly exemplary.
Having said that, these are some very selective schools, especially yale.
Yale: reach/high reach
Brown: low reach
Cornell: high match
Vandy: high match
Chance back?
http://talk.collegeconfidential.com/what-my-chances/1741178-predict-my-results-will-chance-back-p1.html