* "Luna ghost" is a vague term. Do you mean a specific character from a book, movie, or game? Do you have a specific image in mind?
* "Easy" is subjective. What's easy for one person might be difficult for another.
* The complexity depends on the costume. A simple "ghost" costume is easy to put together, but recreating a complex character design might require more effort and materials.
To help you, I need more information:
* What is your vision for the Luna ghost costume? Can you describe the character or provide a visual reference?
* What are your skills and resources? Are you good at sewing, crafting, or working with makeup? Do you have access to specific materials?
* What is your budget? A simple costume can be inexpensive, while a detailed one might require more investment.
Once I have more information, I can give you a more helpful and specific answer about the difficulty of dressing up a woman as the Luna ghost.