Maths and Physics will look really good, however I'm not too sure about the other too. I would definitely advise you to do English lit (which law schools love) or history/essay subjects because it shows your passion for writing (if you have it; I do!) and they like that since Law is mostly involved in lots of reading and writing as well as a lot of studying. I did Maths, Eng lit, RS and Politics. It was great having a balance of both essay subjects and maths. I got AAAB (B in maths which I dropped). I'm predicted A*AA and I'll be firming QM for Law.
Good luck!