As a Twilight cosplayer, I can't recommend the horn/ears combo enough! While I made my own (didn't think sawing through Yaya's was the best idea just to add lights), the horn makes the immediate connection to you cosplaying a unicorn.
It might also just be the photo, but I also can't see Rarity's cutie mark anywhere on your cosplay? A little applique on the vest would be a very nice detail!
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- Mermaid Ariel- Swimmable (Disney's The Little Mermaid): 90% (Final Touches) Colossalcon 2015
- Loki-Inspired Swimsuit (Marvel's Avengers): 49% (Sewing) Colossalcon 2015
- Magic Armor Link 2.0 (LoZ: Twilight Princess): 5% (Armor Revamp) Summer 2015
- Genderbend Makoto (Free! Eternal Summer): 97% (Final Touches) Colossalcon 2015