To answer your question, my boy nova_manc is obsessed with Asians.

perfect, he takes the asians i take all the Mancunian white girls haha
and to extrapolate on that, English girls only SEEM harder because of two things: they are more grounded in their social circle and the conservative British culture is not as conducive to daygame as other European cultures. What i mean by more grounded in her social circle is that she is less open to the idea of meeting someone new on the street because she has a lot of friends anyway.
this doesnt mean British girls are harder. i know many guys think so. but what it really is, is that meeting and attracting a British girl requires going beneath the surface of the things that people teach you. this in fact, means that its an opportunity to improve your skills at its fundamental level.
what i mean by this is that you will have to properly stimulate her emotions. with foreign girls, due to culture and not having as strong a social circle, her emotions can be stimulated relatively easier than British girls just by approaching, having good subcommunications and not being a total weirdo when speaking to her. scouts honour.
with British girls, learn to speak in emotive language, which is how women are programmed to be stimulated. speak in terms of emotions (duh), sensations, paint a picture, role play. most of all, don't be afraid to be ridiculous. relate what she tells you emotively to what kind of person she is e.g "so because you're a lawyer, i'm guessing you like to argue cause you like to win, it makes you feel like you have real purpose in life."
most importantly, have fun and a cheeky smile when you do all this.

hope this helps!
and approach more British babes! unless you love Asians like nova_manc
