Yep, you need to generate some "votes" towards that page, basically in that niche if they have any boutiques opened in any commercial mall in UK you can easily ask a link back from them(supposing that the mall has a website).
I'm working in the same niche but targeting another country and I must say that reputed business listing websites like yellow pages helped. New boutique opening, or any other information that could be newsworthy then you should definitely consider some press releases distribution(consider that a press release from Apple is generating 5k+ backlinks towards their website) .