Common mistakes to avoid in Halloween doorscaping include overloading the space with small cluttered decorations, neglecting lighting importance, and skipping scale balance. Avoid using many small inflatables or pumpkins that compete visually. Instead, prioritize a single oversized sculptural piece and layered lighting to create drama. Also, neglecting lighting first reduces impact; lighting should set the mood before adding props. Finally, overcrowding textures or colors dilutes quiet luxury. Focusing on restraint, mood lighting, and scale ensures your entryway remains elegant and memorable for Halloween.