That is quite narrow, but I wouldn't go as far as Geography or P.E.! More like Chemistry if you want to branch out (though having History / English would actually be fine, as it's good to have some humanities subjects if you enjoy them).
Contact the universities if worried. Personally I would swap Economics for Chemistry, but that's just a general outlook - if you want to do a degree in economics or B.S. you may need it. Do check though, as maths is more important, I'm sure.
You have very good predictions - have you considered doing all four to A2?