London Brow Experts, Where Art Thou?

London girls with great brows, I need your help.

For the past six years, I've been fiercely loyal to my brow artist, the excellent Rachel at Valery Joseph in New York. Unfortunately, I'm now starting to lose the fantastic shape she created, and attempting to recreate it just results in frustration and asymmetrical brows. I need a London brow expert, stat.

I've heard there's someone by Kensington Church Street, but that she's a real brow bully -- the kind of person who will yell at you for touching up in between. Not really into paying for intimidation, so she's out.

I'm looking for someone who creates thin, gorgeous, nicely arched brows. NOT SPERMY ONES.

Any suggestions? I'll tell them you sent me.