This is an outfit made by Princess Greta.
All must be gotten from Haunted house which is for free.
You go down the hole by the weeping statue where there will be a monster Halloween party. Customize the witch's hat
Customize the witch's dress in the party
Customize the witch's cape in the party
The broom is from the witch also
Green Skin Edit
If you want green sky customize your skin on Home Island in a machine