As I’ve started modelling a few of those items some time ago and did a lot of private research also on-site as well, I’d just like to add to your observations.
I think the 3D modelling is pretty good for the most part.
There are missing parts on the Holbeinsteg though that are very obvious (the outer struts).
Also too bad they didn’t model the distinct and unique surface structure of the Westhafen Tower, which gives impressive reflections in real life with those triangular shapes. I started modelling those details months ago but unfortunately didn’t have time to continue. Since we now have a serious first general add-on for the area maybe that’s a good reason to pick up the project again to refine those details. If it’s modelled right, those reflections will appear in the sim just as they do irl which is almost magic.
Texturing convinced me way less as it’s a bit cartoonish but it blends in well. Also there are details missing on the Europaturm for instance, plus I think that broad set of antennae must be from years ago. That’s far from the current setup.
However the far worst and most disappointing part is the night lighting.
Across all buildings, all red obstacle lights appear way too dark and are really blurry. As I haven’t spent time with the SDK for months I don’t know if that’s a limitation of the simulator. It needs to be fixed in any way.
There are obstacle lights missing on the EZB, which has a very noticable appearance at night. Actually all of them are missing except for the roof part.
The yellow spot lights on the Commerzbank Tower are entirely missing, probably the most significant downtown lights at night.
Also the lighting of the Europaturm is way less than perfect or realistic. The unique purple-pinkish spots are mostly missing. From far distance this is a significant eye catcher and it’s none in the sim.
Generally speaking the night lighting is just completely dull and extremely lacks contrast. The skyline doesn’t really pop out at all as it should.
All in all I’d rate this package a max of 3/5. It has some good and promising parts but to be more authentic there are a number of things that need more attention (and I think should get more attention as they don’t seem neither major nor impossible).
Hope this helps.