Notes:

Awww! Jewel has little stockings on her antenna, that's cute.
That sheep is a recurring background character Lanolin the Sheep, originally conceived by Adam Bryce Thomas.
Art by Evan Stanley "SpiritSonic", twitter source in the Source link, DeviantArt source link here. She's also done individual artworks for each character, this is a combined piece of all of those, check out those links to find them.