What is in this image? Be very specific. Scientific, Engineering style! No emotions, no opinions, no metaphors. Just the facts, as detailed as possible.

The image features three children and a dog. From left to right, the first child is wearing a winter hat and a coat, depicted with his hands holding a star-shaped object in front of him. The second child, who is in the center, is wearing earmuffs, glasses, and a winter coat, with a scarf tucked into the coat; this child is holding open a songbook. The third child, on the right, is also wearing a winter hat with a pom-pom and a coat, and is holding a heart-shaped object.Additionally, to the right of the children, there''s a small dog sitting on its haunches. The dog has large ears, a long tail, and appears to be in a playful or attentive pose.All figures are styled with simple, bold outlines suitable for a coloring page. They are standing on what appears to be a snow-covered ground, indicated by a simple, curvy line at their feet. The overall scene suggests a winter or holiday theme, possibly involving singing or festive activities.