It's been a strange growing season for the maples, which would provide most of the colour. Some of mine have just gone straight to brown, and few seemed to have agreed when was the best time to show their autumn colour. The A. circinatum in Central Park is probably reliably red, but that's an understory plant so you wouldn't necessarily see it from up there.

I'd wager the one that does show up decently red is either a red maple:

or a pin oak:

All native trees to North America - you're lucky, British trees tend to favour brown in autumn with the occasional splotch of butter yellow, we're jealous of your brilliant reds and oranges! In fact, Francesco's photo looks more like an English autumn than a New York one (the trees anyway, the skyscrapers not so much!).