An hourly rate around £120 has been "the norm" for me!
Generally the £100~£120ph is the norm rate for a typical english girl, who will also get repeat business at that rate.
Very few can get away with charging £150 or more, although the phrase beauty in the ehe of the beholder may apply. I have paid this rate for girls such as Zara Louise, Ava Grace, etc but they tend to be an exception rather than the rule. If you look at the top girls in the EM, most of them charge below the £150 mark,