It took me two days to make this package, and it is very far from perfection. And, I cant do better than that with the tools I have. I am not come to do exactly what I wanted... The texturing is horrible, the bumpmaping does not render expected, the adjustment is impossible to do correctly and I realize that the elements H and V of 2 blocks was not necessarily a good idea, ..., ..., ...

But be careful, if it is lowpoly, do not abuse of copy/paste.

One major problem is the directories structure of Sauer too open. Personally, I find deeply unhealthy individualistic culture of the proper names of the authors for sharing. It is not constructive and I am against. Also, I much prefer the rational structures. For me, the textures should all be in the folder with the same name , the skyboxes too, and mapmodels should be structured thematically. I should create a folder named "models/urban/gutter/gutter_1" but I did not see that there is no rule here for that.

"galvanized steel", hum... Yes, maybe, but you know, in fact, what you see is only some electronic's colored points, so... ;-)

Specmap is correct but i think that is possible to do better for the bumpmap. I do not really understand how the nVidia PS plugin work, so, i have make just a black/white gradient...
But I know that the bumpmap and specmap works, although not very visible. Size adapts to the size of the initial skin but take up less storage space.

In all cases, the community is welcome to improve it