Tablescapes: Urban Street Painting 2

I've been slacking on my painting.  Work and life have gotten in the way.  Here are some more progress shots of the tablescape urban tiles. 

I first started by airbrushing in the Badger Airbrush "Cracked Soil.  I did it around all the drains, manhole covers, and craters. 

I then worked into the craters some darker brown.  I used the Badger Muddy Brown to do that.  Finally I pulled in the black color in the center of the craters and I covered all of the metal work.

Next step is to paint all the metal work silver then wash it with an armor wash.  I'll then be on to the stuff I don't have any experience on... masking fluid to break up the yellow painted street markings!  After that I'll work on oil washes and weathering powders.