My first lot of creatures of Frostgrave turned out nice for such simple work. The Skeletons are GW's Tomb Kings Skeleton Warriors and the Imps are the goblins from GW's Escape From Goblin Town. These just happened to be mini's that I have knocking around the hobby cupboard that fortunately fits in the Frostgrave theme.
I have never liked those goblins from Escape From Goblin Town and I know it's not GW's fault that they look awful seeing as they had to design models to accompany the films aesthetic which I thought was poor the second they turned up in the film. Fortunately, I feel they work quite well as Imps / Lesser daemons due to how varied they all look physically.
Although I used mostly the newer Vampire Counts Skeleton Warriors because they look better against most other Warhammer mini's I love these goofy Tomb Kings Skeletons mainly for their cheesy grins. They defiantly do not fit in the semi-serious Age of Sigmar aesthetic they certainly have a home in my games of Frostgrave due to the slight comicalness their outlandish poses and big grins emanate.
I'm still working on some Armoured Skeletons and they are very close to completion and next would like to work on some animals like Giant Rats, Wolves and Bears.