You made the right choice. If you really like art, devote a LOT of time towards this activity. You will get portfolio projects, experience, essay topics, and a ‘hook’ to show off to colleges. You don’t have a lot of leadership positions, which is completely fine. You can make your own EC if you would like (art club, ceramics club, etc). Other than that, your SAT and GPA are above average, so you should be fine.