@Smoke Thanks for taking the time to post those extra pics. Your fall color is so much better than mine. On the coast its been 70-72 during the day, with 45 at night but a lot of dew. Not much fog the past month but its starting to come back.
The reason I mentioned the ocean to BVF, and now knowing your in SF is because I get no air from the ocean. I live in the central valley and in a giant canyon do to speak. The air here at night is very still and cold. Citrus growers love this place because the nights are cold and the days are warm, which you need for navel oranges. So when it gets freezing they use wind machines to move the air. It is still freezing but the moving air cause less damage or even no damage. It is so still here that some ocean air (and movement) really helps with fall color. When the air is still, it just freezes and the leaves turn brown and just fall off.
That is why this little nerifolia has no leaves. I didn't defoliate it, all the leaves froze and turned brown in one night. I think last Friday, so I just took all the leaves off.
The ocean for you is just a giant heat sink, which is why the air temp at the coast stays within a range. Hard to get fall color at the ocean, just not cold enough at night.
Also notice the big branch up top.
Now it's gone and another small branch bent down in it's place. Beisides it needed pruning anyway, which it got.