The Raft of the Medusa has a triangular composition, and the hand gestures, body movement and clothing movement all points up towards the top of the triangle, where people are raising a flag to be rescued from the sinking raft.
The answer is somewhere along the lines of the good witch wears pink and apreciates all the small people( i fogot their names) she also uses little fairy wands and wants to help others whereas the bad witches dress in dark colours and hate other people they look green to show hatrid and anger and try and take things not belonging to others also they were striped stocking which is what many people imagine witchs to look like hope this helps