I am not an expert on perspective, but logic tells me that the man on the left is farther away than the streetcar, therefore he should appear smaller than the people riding it--the ones that are so tiny you can't even see them. Maybe he's walking away dejected because the conductor told him he was too big to board. More likely it's a case of turn-of the century photo editing. The image probably seemed a little dull, but nothing the addition of a streetcar wouldn't fix!
Trams have been operating continuously since 1876 in Milan, with transitions from horse-drawn to steam-powered, and then electric. Although there were also post WWII cuts that persisted through the 1970s, the system survived. As in a number of other cities, trams have managed to regain favor in Milan resulting in a revival of tram service.
The second card shows a seemingly congested center terminus in front of the magnificent Piazza del Duomo in Milan. There was no photo editing here. They didn't even remove the wire or cable that crosses the image diagonally.
Here's the ultimate edited postcard image, showing Berlin's Nollendorfer Platz. My guess is that the street was empty on the original image. I like the final result though.
Here's the back of the card.