Does a list like this exist anywhere? if not, shall we create one?
I can think of the following:
Laura Ashley - 'Romantic'
All Saints - 'Alternative'
Karen Millen - 'dramatic'
Michael Kors - 'Glamorous'
La Redout - 'Classic'
Monsoon - 'Ethnic'
Ralph Lauren - 'Preppy'
Boden - Classic with a touch of bonkers 
You get my drift.
I suppose I'm wondering if there are any shops I've overlooked which may be my kind of style (classic/dramatic).