Homemade Costumes that Really Won Prizes in Local DIY Halloween Costume Contests! The Queen of Hearts should be Alice instead though. In back story Alice and the Hatter were in love. It is only ever actually stated in one version of the movie.
This site has some great easy diy costume ideas! cute costume, and love the added duckie headband! I would add a long sleeve white shirt and white leggings so it's less revealing, but other than that it's a cute idea!