I live in England and I make games. Mostly I use Unity these days though I used to use flash, the games I make are pretty varied, mostly I make whatever suits my mood at the time :)
I explain how I make levels for Sarah's Run, going from a sketch on a train ticket to a finished(ish) level. with pictures, video and a playable build...
Sarah's Run now has a 10 level preview demonstrating Gameplay and a few other things.