It has looks as though each individual piece was crafted specifically to work in conjunction with the other pieces, not a clunky-but-effective patchwork of scrap metal plating.
Like I said.... Err, what?
The combat armor has that look. But the metal armor? If you want cobbled together stuff, there's plenty of raider armor strewn about. The metal armor looks like a bit more time was put into fashioning it (as in, someone found some tools or a machine shop) but it still looks cobbled together. Maybe the fact that more effort was put into it is why it's head and shoulders over the raider getups.
Looking at the FO1/2 renders looks like this was the case with those too; like someone found some good bits of scrap metal and did some metal work on it.
So is this just another "it's not Fallout 1/2" issue?