Your gpa and SAT IIs are great, and your SAT score is pretty good for a WashU applicant. If you have the opportunity I would suggest giving the ACT a shot. Your ECs are very good as well, but keep in mind a lot of people have long lists too. WashU heavily considers passion and interest so applying ED is great. Try to visit and set up an interview, and make sure you show what makes you unique in your application. Good luck! 