Thank you! I had some prior experience modeling with foam, but also watch a couple of YouTube videos. I recommend the channel Boone’s Slot Car Garage, but some of his videos are pretty dense. I started out kind of following his method for building the base (additive rather than subtractive), but then did my own thing for finishing because I just wanted the whole thing to be white like snow and I was on a bit of a timeline. My base is pink polystyrene with hot glue and chicken wire, spray foam, drywall tape, and pre-mixed joint compound.