Imp
Midna from Zelda
Midna (voiced by Akiko Koumoto) is the former leader of the Twili people. She made her debut on The Legend of Zelda: Twilight Princess for the Nintendo Gamecube and Wii. Though her people are known for wielding great magic she has been stripped of hers and – for most of the franchise – is trapped in her imp form. Both her imp form and her true form make for excellent cosplay costumes!
For her imp form you will want to find a custom cosplay headpiece from Etsy. Worn over a yellow spiked wig it gives you the most iconic part of her appearance. From there face paint and a light blue body suit modified with black fabric paint gives you the rest of her look.
If you want to cosplay her true form you will need a ginger wig that you style in the unique manner Midna prefers to wear it. A black bikini top , black wrap skirt, and black cloak finish off her clothing. You can use body paint to achieve the blue-skinned look of her concept art or you can choose to stick with your natural skin tone if body paint is not appealing!