That was a fantastic course, learned a lot in this. One thing is Kent went really fast through the compositing part. I think it's going to take me a bit to go through it but I will post/archive my renders before compositing anyway. The shading was also challenging and spent many hours going through it and trying to get it to look reasonable anyway. 8^]
So here are my pre-composite render attempts...
EDIT: upon posting the pics I see somethings I need to tweak. I find it interesting how the pics posted here look a little more detailed than my monitors. The glass on here really looks bad, maybe the displacement needs lowering as well as the white setting in the grunge. I did have trouble trying to get a glass look in the shading
Update: Finished the compositions and fixed the model so deleted the old and add in the new renders, before and after compositing.
Yes, great result Brad!
There will always be room for improvement, but this looks really good.
One of the most difficult things is, when to stop tweaking...the longer you work on something (at a row), the more 'faults' you'll see; you'll never reach the horizon of perfection...
Give your eyes and brain a rest and (maybe) work on something else and look at it again in a few days or weeks and you'll be surprised 😊