I don't have any pictures of myself on a bicycle, but here is a close approximation:
Albeit, in Chattanooga, not Amsterdam.
I ride an old Bauer "city bike" I inherited from an old German gentleman who passed away a while back, in his 80's. I'm not sure what year the bicycle is, but it can't be much younger than the mid-70's. I don't wear the suit jacket (usually), but I do wear a shirt and tie most days to work (except when it has been hot, then I dress for summer weather).
However, what I have found is that a large number (majority?) of American bicycle commuters look something like this:
I sit straight up, with a sight-line as high (or higher than?) the drivers all around me. If the bicycle falls out from underneath me, I simply put my foot down and stand up; that is, I don't travel head-first on a "hybrid", I sit straight up-and-down. Nor do I roll up my pants, my Bauer Sprint has a chain guard on it. My speeds are slow, I guess. I travel to and from work here in the City at somewhere around 10-12 miles per hour (including the numerous red lights I hit); a 2 mile commute in 10-15 minutes, all of it in city traffic.