Glad you enjoyed the video. I really enjoyed the game. I love Frostgrave and the idea of being able to run a solo campaign in between normal games is fantastic, as is the option to introduce some non gamers via a co-operative play scenario.
The staircases and arches are 3D printed from files from Dungeonworks. They are very versatile 1" and 2" elements that are clipped together to make stairs as tall or wide as you want.
The doorway, ruined walls and rock formations were also 3D printed from files from Printable Scenery.
The heads for conversions are from 'Critter Conversion Kits' from acp164.com