Sophomore wondering how strong my ec's are for top tier schools

I’m a sophomore who currently lives in the UK and am planning to apply to schools such as Columbia, Georgetown, Duke and Brown. However, I am not sure about the strengths of my EC’s currently and how much I need to improve them.

1.) Speech team - been on it since 8th grade, represented school in regional competitions - also will run the team next year and should get to the national finals this year as it is a better team.
2.) Debate team - on my debate team since last year, again represented them in a few national competitions

3.) Soccer/ Football - JV Varsity
4.) Cricket (Its a sport thats popular in England) - my team got to the state final and I play for my state - also selected by my team to go on a cricket tour to India next easter for 3 weeks (highly selective only 12 people are going out of 100 who tried out) 5.)
5.) Cricket related - also work with a cricket charity and helped raise over $15 thousand last summer - help them with fundraising and admin
6.)Public affairs club - been going since last year
7.) International affairs website - just started my own current affairs website which hopefully should be quite good as I have writers from all around the world - interviewed people ranging from Brazil to Singapore and have a team of writers and we all communicate (www.worldfp.weebly.com) in case anyone is interested.
8.) Work with a community planner/charity and we put pressure on local governments to accept 3000 syrian refugees

9.) Last two summers have worked at a charity in India with orphans helping them with their homework and school projects 10.) Have worked for 2 weeks at a law firm shadowing a partner and contributing to a couple of cases
11.) Kumon instructor - taught maths and english there for the last 2 summers

I’m looking to improve my EC’s in some ways by starting a few clubs next year but I’m not sure what else I can do. How can I expand on my EC’s and improve them to make them more sophisticated.
Thanks.

Remember, you only have room for 10 activities on the CommonApp, so honestly just do 10 meaningful ones at most. For now, though, it looks decent.