Why does anyone other than an admissions officer reading the actual application think they know whether someone will be accepted to these schools. Furthermore, the difference in difficulty between Harvard and Cornell is tiny - plenty of people get rejected from Cornell and accepted to Harvard, and very, very few people get into 5+ Ivies, especially international students from a country with a lot of apps.
Sorry, it just really bugs me when people act like they can actually say with any degree of certainty that someone’s getting into Columbia or UPenn.
All that being said, you have a strong application and you have a shot at any of those schools, especially the last 4.