Obviously you folks haven't been to Stockholm! Thats hipster scene in overdrive for sure, although they all seem a bit insecure about it.
I've never felt intimidated by how polished people are in London because honestly if you look around there are either a bunch of tourists who look out of place, a bunch of locals wearing Primark, or people wearing jeans and hoodies. Maybe at work - I actually had to start buying jackets to go on top of work wear in case of meetings because I guess thats What You Do Here and I wear hose too most days. Small adjustments but I don't work anywhere super formal. I do wear makeup more frequently here but just base and mascara, nothing more.
Anywhere Shoreditch and north/east of there is going to be wanker central and full of poseurs who aren't original in any way, shape, or form. Blitz Kids they are not, that was some true originality.