Yes, the New York subways certainly are famous, though not exactly in the manner Mark Trail is suggesting.

I’m not sure why Rivera started making Mark act like a country rube visiting the Big City. I think Rivera could have done the “personal tour” with a standard-issue Mark Trail broadcasting his commentary to whomever passed him by. 

But this is not really a story at this point. It is more like a long TV commercial selling you on why you should visit New York City. Heck, maybe Rivera has a more personal motive in mind.

Art Dept. I don’t know how to explain this. In looking at the street dancers, they seem to have a real sense of mass and volume in their bodies, unlike the more cartoony, flat figures Rivera usually uses for Mark and the other regulars.