Obviously I need to change my notification settings so I become aware of conversations as they're developing!
But better late than never, as they say...
Number 2 is based on the Trelleborg fortress in Denmark. What I was thinking about when I made it was the Jomsvikings, more than, for example, a trading settlement like Birka or Hedeby, developed over a period of years. But I made the arrangement of the buildings more haphazard in an attempt to make it look more like a "town" than a military "camp" so that it would have a broader usefulness in scenarios and mods. I wanted to create a distinctive "Viking" style and this is the result.
The question of its size came up when I first posted it but it was tested in game and actually is the same size as other cities. It appears larger because of its uniform shape - it fills more of the square. But vertically and horizontally it's no larger than other cities.
As for its usefulness for the Normans, I agree with Ares (as I often do!). Since I was trying to create a "flavor" I'd think it was suitable for Goths as well. I agree that a hill-fort style could easily be made from this for the Celts.
Finally, I'm honored that Rob has found it suitable for use in Anno Domini. Thanks, Rob!