Dice Kingdoms of Valeria Winter Expansion Review, How do these new sheets change the game?

About Dice Kingdoms of Valeria: Winter Expansion, from BoardGameGeek:

After a summer spent fortifying your duchy and subduing the monster-kin, winter's first snowfall puts you right back at square-one, but this time the monster-kin are better organized and harder to find. This winter-themed expansion for Dice Kingdoms of Valeria contains snowy castle and forest player pads (50 sheets each) featuring a new map with unfamiliar roads to your favorite domains and some new monster-slaying mechanics. -description from Kickstarter campaign