Fionna The Human is fictional character from Adventure Time. 

Fionna is the Gender swapped version of Finn The Human and was created by the ice king for his fan-fiction.

 

This Cosplay took around 9 weeks in total to complete and was worn for Armaggedon expo 2014, most of that time going into the crystal sword which i built myself and the dress which is a modefyed wedding dress.

 

Bag and Hat from Mathmatical Cosplay