YABU.
Why is it that in this country we only find European features as attractive.
Well actually I vehemently disagree with that statement, I don't think that only European features are considered attractive AT ALL. Far from it. Scientific studies have shown that there is a sort of beauty 'ideal standard' that most people of all ethnicities find very attractive, because it takes physical characteristics from all ethnicities and blends them in a way that attracts almost everyone and alienates no-one in particular. And this ideal standard of beauty is most often found in the very mixed race melting pot that is Brazil for example, hence why south American women seem to have had a higher success rate than most in Miss World.
But back to your question, European (and by that I assume you mean white) women may be considered more attractive, by more people in the UK, on the whole, and there is a very straightforward reason for that.
It's because this is a European country. The vast majority of the people in it are of European ethnicity. The theoretical 'ideal standard' of beauty apart, as a general rule most people are more likely to feel physically attracted to people whose ethnicity they share.
If you went to Africa or south east Asia you'd probably find that most Africans or south east Asians would choose African or south east Asian role models as their idea of being the most beautiful.
I think it's a pretty normal, anthropological 'thing' that happens the world over, I doubt it's a phenomenon that's confined to white people in Britain.