I own the blue set and this green set as well. The green includes combinations of green and gray walls and trim that you can turn on and off in the layer settings. You could easily build an entire table worth of terrain with this one set.

One of my favorite features are the modularity to mix and match different wall lengths and styles (angled or straight) to make anything from a 4x4 or 4x6 building all the way up to an 8x8 building. I also love how you can make each piece unique by simply turning on or off different layers in the PDF (super easy to do in the free Adobe Acrobat Reader). You can add doors, windows, pipes, lights, signs, numbers and other details, but even cooler than that, you can change the entire color scheme of the set. I also love the railings on the roofs that provide cover your figures in a firefight. We will be using this for Warhammer and as part of an arcology for Shadowrun as well.

The creator is super responsive and emailed me back almost immediately about a question I had about the set. If you are considering sci-fi terrain, this is a great set to get.

Definitely a good buy, I have thoroughly enjoyed building these models, and have subscribed to the Dave Graffam FB page to show off some of my buildings, and get inspiration from other builders. Dave Graffam is very responsive to input, he sent me a missing panel file as soon as I told him about it. Very pleased with both the product, and the service.