“Speed” and “expression” are very often a challenge of balance when you have to sketch. Do you really need a lot of time and that many lines to express in your sketchbook what you are seeing and feeling? I don´t think so… Here´s an example that made me wonder about this. It was done very quickly with so little information regarding the commuters and the inner space of the Subway waggon they were in. I believe it works… what do you think?