Have you considered cosplaying something other than anime? There's some really cool characters you could do.
Princess Tiana (The Princess and the Frog)
Akasha (Queen of the Damned/Vampire Chronicles)
Catwoman (Batman, as played by Halle Berry)
Not to mention there's some cool minor characters like Angelina Johnson from Harry Potter (some quidditch robes would be so cool), Yaya DaCosta's character in Tron Legacy, or Iridessa from Disney's Tinkerbell movies.