What do I need to do make myself a competitive Computer Science Applicant for UCL?

Hi,

I am looking to study Computer Science at A-Level and am looking to get A*, A*, A at A-Level studying Maths, Economics and History.

I am currently completing the Odin Project, being fond of reading Computer Science books (read 2) as well as following Hacker News.

However, should I be doing more to make my application more competitive? and is the fact that I am not studying a hard science such as Physics at A-Level going to weaken my application? I know this is not the case at say, Queen Mary, but definitely is the case at Oxbridge.

Please Advise,
Thanks!