I did a high res vector drawing of Sarah for the Locked In key art, it's the only version of her that I'm happy with, I spent ages on it and it'd be a shame if I didn't share it. So here ya go!
Almost all of the objects in the world use a material with a world normal which lets snow fall onto the object and give it a highlight, it was important for me to cut extra detail into objects to allow that shader to create interesting patterns on the objects.