Ralf has helped me resolve the issue, and I thought I'd post the solution here in case someone else is affected.

It appears that there is something wrong with my Windows cache, or with how the installer and update are interacting with it. Whatever the issue is, it had the following effects:

Running the installer in repair mode triggered a "Your license key is invalid" message. Running Update 28 took care of that issue (though it did prompt me to enter my serial number, which it doesn't normally do), but removed the patch.ini file from the system folder and the cfgmenuconfig.exe file from the data folder. It may or may not have removed other files as well - I have no idea.

Ralf sent me an update program that skipped the Windows cache steps, and that updated me successfully and without removing those two files.

So, I'm up and running, and hoping that if the issue is with my Windows cache this is the only thing that's affected.

From an aesthetic viewpoint, I prefer the darker brown "base" (the supporting earth/cliffs) from your first map to the much lighter color of the second one. I think it's the contrast between that and the surface area that appeals.

Cyberpunk has become such a broad category! I hear the term and the first thing that comes to mind is Shadowrun - it was my introduction to cyberpunk when FASA first published it in the (late 80's? early 90's?). But then there's also Blade Runner (released pre-Shadowrun but not discovered by me 'till after I played Shadowrun and became interested in the genre). Now we've got Altered Carbon, which leans more heavily to the science fiction side, but still has strong cyberpunk elements - especially in the first book of that series.

So for me, a cyberpunk style needs three different "looks" for its map assets:

1. Gritty streets and alleys, with debris and trash, flickering street lights and neon lights. Some of these would be isolated/empty back alleys, and some would be crowded, with lots of storefronts, shops, etc.
2. Slick, modern buildings and skyscrapers where the corps exist. Office buildings, luxurious homes. Maybe varying degrees of Oriental influence, since many cyberpunk settings (from my youth, at least) seem to feature tech takeovers by the far eastern cultures.
3. Not necessarily unique to Shadowrun, but certainly first encountered there by me, "back to nature" assets for those storylines that feature the conflict between the natural (and supernatural) world and the encroachment of technology. These could be harvested from other styles, of course - there are already tons of fantasy style assets out there since fantasy type maps are so prevalent.

It could easily become one of the "two annual" styles - maybe a "Cyberpunk Street Chum" and a "Cyberpunk Corp" style, each focused on one element of the overall genre.

You can explode the scale bar (the stick of dynamite symbol on the left), then edit the text to say whatever you want, change the font or color, etc.