Create an easy Christmas coloring line-art illustration for young children featuring scene: Christmas Morning Present Opening. Treat the scene description as a literal visual requirement. Every specific character, object, setting, or activity named in Christmas Morning Present Opening must be clearly visible and easy to recognize. These scene-defining elements are the main focal points of the illustration and should be shown prominently. The stars of every scene are a small trio of adorable Christmas friends: a playful little penguin wearing a simple striped scarf, a friendly round-bodied reindeer with soft simple antlers and a small round nose, and a cute smiling snowman with stick arms and a tiny hat. Include at least two of these three friends in every scene, drawn large and expressive as the main characters, with clearly happy faces so every scene reads as warm and cozy. At most one classic Christmas character, such as Santa Claus, an elf, or a gingerbread person, may appear in a supporting role, kept smaller and secondary to the trio, or may be omitted entirely. Simple Christmas accents such as a moon, stars, large simple snowflakes, a fence, pine trees, a wreath, or a single small wrapped present may complete the scene; outside the scene "Christmas Morning Present Opening," keep wrapped presents small and secondary. For the scene "Christmas Morning Present Opening," show one large gift box with its lid lifted off and a character joyfully pulling a simple toy out while the others watch excitedly, beside a small Christmas tree. For the scene "Picking the Perfect Tree," show a snowy tree farm with a few simple pine trees in a row and the characters happily pulling one chosen tree on a flat wooden sled. For the scene "Paper Snowflake Crafting," show the characters at a table with large simple paper snowflakes they have cut out, one character holding up a big finished snowflake proudly. For the scene "Toy Train Around the Tree," show a simple toy train with an engine and two cars riding a big oval track around the base of a small Christmas tree while the characters watch happily. For the scene "Feeding the Winter Birds," show a simple bird feeder on a post with two or three small round birds, and the characters sprinkling large simple seeds from a bowl. For the scene "Building a Snow Fort," show a low curved wall of big rectangular snow blocks with the characters stacking one more block together. For the scene "Snowman Dress-Up Fun," show the penguin and the reindeer lovingly dressing the snowman in an extra long scarf and a big warm hat while he smiles happily. For the scene "Christmas Eve Bedtime Story," show the characters snuggled under a big blanket while one holds a large open storybook with completely plain pages, beside a small lamp or candle. Keep the scene simple, spacious, and easy for young children to color, using only a few large, clearly separated elements, broad open coloring areas, generous white space, and minimal detail. Present the line artwork itself directly as the image: a flat, straight-on digital illustration filling the canvas, with the canvas edges themselves forming the outer limits of the artwork. Use only black outlines on a pure white background, and keep every enclosed shape completely unfilled with a bright white interior. Every visible element, including lights, windows, ornaments, presents, decorations, trees, wreaths, stockings, snowflakes, and hair, is rendered as crisp black outline line art with bright white interiors, so the entire illustration reads as a pure black-and-white line-art image. Create a true edge-to-edge composition: a few large scene elements may naturally continue beyond and be cropped by the four canvas edges, while the main characters and main activity remain clearly visible within the canvas, leaving the canvas edges visually open rather than enclosed. Keep all potentially writable surfaces plain and unmarked; communicate everything entirely through characters, objects, poses, and actions. The finished artwork contains only pictorial black linework and white coloring space.