What is in this image? Describe it in Simple English. As plain and simple as possible. No complex words, no long sentences. Still make sure to describe everything in the image.

This is a picture of a young girl in a fancy dress standing near a fireplace. She looks happy and is looking at a small mouse standing on the floor in front of her. There are some big pumpkins on the ground. Behind her, there is a wall with a clock and a vase with flowers on it. The picture looks like a drawing from a coloring book.