Nice work and thanks for the breakdown! Always interesting to see someone else's approach to a scene, and the new/different methods they use and/or come up with :)
There are no pdf's of the updated versions available for download!
3D Stylized Environment looks every time beautiful today this is my subject on that I have to Do My Dissertation and bring some new information with our reader.
Take a look at another useful tutorial by Ognyan Zahariev. The artist showed the way he created his dirty glass material, giving some nice tips and tricks for Marmoset Toolbag 3 users.