Complete Costumes

Princess Bubblegum (What was missing)
Adventure Time with Finn and Jake
Sawada Tsunayoshi (Choice battle)
Katekyo Hitman REBORN!

In Progress Costumes

Blake Belladonna (Beacon Uniform)
RWBY RoosterTeeth
Katara (Book 3)
Avatar the last airbender

Planned Costumes

Midna (Imp)
Legend of Zelda - Twighlight Princess
Korra (Normal)
Avatar: The Legend of Korra
Katara (Fire nation)
Avatar: The Legend of Aang
Simon (Pre-timeskip)
Tengen Toppa Gurren Lagann