It is striking how the dark night sky and meadows background match up with the character's pink hair and green skin. This looks more like a late night in spring than a dark night in october. As far as I know, flowers do not bloom in autumn season. Though the hot beverage in her left hand is something you'd see later in the year. Keeping warm with food. Lastly, her dress is important. Makes me think she's from a world where Goblins are recognize as civilized peoples. That cute bow tie above her head helps with that.
Overall: Great work of art here!