Christmas Reindeer

This deer is preparing for the most important event in my life, meeting with Santa Claus. He studied very diligently all that he may need to work on New Year's night. Yesterday he passed the final exam with flying colors and was sent to the home of Santa Claus. Deer decided that he must appear before the Santa in the best light and that's why went to the market to buy a new dress. Can you help him?