Hey Zac, that looks great. The only critique would be that (if these are standard pavement concrete slabs) the roughness is right around perfect around the edges of the slabs, but the centers seem to be just as shiny. They should probably be quite a bit rougher where the concrete finish is purposefully roughened for grip.
I picked this up a few weeks ago, viewed a plethora of tutorials and went ahead and made my first substance. I've also been working on a brushed concrete material.
Here's another one of my tutorial videos! This time covering how to make a wet/dry concrete material! [ame=" https://www.youtube.com/watch?v=W2Ei9ZEC2SE"]https://www.youtube.com/watch?v=W2Ei9ZEC2SE[/ame]
Yeah you are right damocles66, I noticed that last night looking at how the street light reflected across the sidewalk. Time to try making some shingles again, definitely a lot trickier than concrete.