That last one... is a restaurant or "izakaya" (a Japanese style bar with food - mostly salty or oily single plate dishes that you order one-by-one through out the evening) and the entrance is a sliding door (traditional). I looked at the original scan at 100% and could not see what was above the right door pannel... most likely a sensor of some type... If you look very close you can see the door pulls on the right and left of the door itself, just below center... the pulls are cut into the door. Sometimes the doors are automatic, and sometimes you have to manualy slide them open/shut. If the restaurant was open (this one is not open at the moment) there is a "noren" or shop curtain slightly in front of (exterior to) the door, about head high (you have to duck under it or part it with your hands as you enter the shop. I'll try to grab a photo to next time the shop is open.
To the left of the door (from our view) seems to be a sign of some type... I can't read the text... maybe it's a "not open" sign which is also common.
I would guess the small door on the left is for storage or waste from the restaurant. Sometimes you see the refridgerator outside on the street next to the shop... as interior space is limited.
The streets are too narrow for sidewalks... multi use for people and cars, particularly near the train stations where it can be crowded. Of course in Ginza there are sidewalks and as well when there are major traffic roads... but not always. Looks like a little bamboo in front of the restaurant... many times there are small guard rails of bamboo to keep cars/bicycles away from the exterior walls (to prevent damage to the walls - particularly traditional plaster walls - also in winter to keep the snow away).
Re: #2... I still have to get the correct perspective
... maybe I need an emotional tie-in, but that's tricky...