I really like your photos, especially the ones taken at dusk!
Really nice showcase of all the various types of rail transit too.
And I think this is the first Amsterdam thread I've seen on here which includes pictures of purely residential areas, which is quite refreshing!
You should come back for a follow up visit, but make sure you come in summer. Amsterdam in winter is pretty good, Amsterdam in summer is spectacular.
And as for everything looking well planned and maintained...that's the Netherlands for you! (and I guess Germany and Scandinavia too)
For a nice contrast you should visit the Dutch/Belgian border area (where I live) and awe at the mess that is Belgian planning (central Antwerp excluded as you already saw for yourself
...)