The ground cover is an inexpensive 2 mm thick foam material I found at Micheal's craft store. I have been playing around trying to get the ground elevations right. It is all a work in progress.
I have added two JTT Live Oaks to the tree canopy that surround the water tank and area west of the water treatment building. I need to find a better small tree to go at the east end of the water treatment building.
The freight house building has been completed except for the roof which is a mockup in the above picture. The final roof is waiting for me to buy, build or design and 3D print the distinctive finials for the end of the roof. The extended overhang over the open freight platform is correct. I found this photo in the CCCHS collection which shows the overhang and finial:
I have a bunch of oil drums painted up to go on the platform towards the final
Like the sand house behind in the overall mockup picture, it needs to be primed and painted.
Jason Hill's recent blog on company freight https://nightowlmodeler.blogspot.com/2020/07/modeling-sp-supply-trains-part-3-boxcars.html has reminded me that the freight house at Port Costa was probably used primarily for company freight in the 1950's. Also the building at the end of the track in front of the station and freight house would have been a receiving platform and storehouse for materials used in locomotive maintenance in the roundhouse.
I have a ton of freight car kits that I want to complete or build. The tank car and caboose projects are lagging. I also have the LocoFi F7 ABBA experiment awaiting further work. And Jason has indicated the Owl Mountain conversion parts for the Bachmann 2-8-0 are coming soon so more work ahead. My currently active Bachmann 2-8-0 is disguised as an early transplant of an SSW locomotive with a fictional number. I have another dismantle Bachmann 2-8-0 ready to receive the new cylinders and drive rods, dome modifications and all else to make it into a close to a C-11 foobie. I have two IHC 2-6-90's also awaiting conversion into usable SP steam locomotives.
It is certainly keeping me well amused and out of bars, restaurants and generally off the streets in these dangerous pandemic and pestilent times.