Create an easy Halloween coloring line-art illustration for young children featuring scene: Neighborhood Trick-or-Treat Walk. Treat the scene description as a literal visual requirement. Every specific character, object, setting, or activity named in Neighborhood Trick-or-Treat Walk 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. Every scene must clearly show trick-or-treating or Halloween party fun: candy buckets, wrapped candies, or simple party decorations such as hanging paper pennants and balloons, drawn large and easy to recognize. Use a small cast of 4 to 5 friendly Halloween characters total, selected from ghosts, vampires, witches, mummies, zombies, werewolves, Frankenstein-style monsters, skeletons, and other classic Halloween creatures. Use each character type at most once. Choose only the characters that naturally fit the activity rather than trying to include every monster type. If a witch appears, she may occasionally ride or fly on a broom, or she may participate on the ground like the other characters. Carved pumpkins are optional. When present, depict either a single carved pumpkin or two carved pumpkins total, kept small and secondary within the scene. For the scene "Handing Out Candy at the Front Door," show one character at an open front door dropping candy into the other characters' held-out buckets. For the scene "Bobbing for Apples," show a large round tub of water with a few big floating apples and one character leaning over it while the others cheer. For the scene "Pumpkin Piñata Party," show a round pumpkin piñata hanging from a tree branch, one character swinging a stick toward it, and a few large candies falling out. For the scene "Halloween Party Photo Booth," show a large simple standing picture frame with two or three characters posing playfully inside it while another character looks on. For the scene "Halloween Costume Contest," make the costumes obvious by dressing each character in one simple oversized costume piece, such as a cape, a crown, or a pirate hat, with one character holding up a large prize rosette. 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, pumpkins, ghosts, decorations, trees, shrubs, bushes, bats, 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.