This isn't Miley Cyrus' first Met Gala, but based on her excitement one would think it is. Beauty: True's aunt, Kendall Jenner, 23, celebrated the return of the gala with old pictures from previous Mets Crews all here: Kendall showed a picture of friends and family, including Kylie Jenner, 21, posing in their best looks Eat up: She also enjoyed …