Public transport and busses are the same everywhere: they offer great possibilities for sketchers. One has a lot of time for observation when there is a lot of traffic.
Luxemburg has a well organised public transport network. Busses tend to be not too crowded so that you can easily get out your sketching gear and make good use of the traffic jams.
Luxemburg means "banks"! So chances are big that if you take a bus going over Kirchberg you can get a good model of a typical banker…
For more bus sketches: see https://www.flickr.com/photos/67040949@N02/albums/72157655881038762
Leen Van Bogaert