Sketch:

I was actually a little skeptical of Prism in the first episode or two, but after seeing her genuine desire to become stronger and to join Sora in protecting Ellee I've some to appreciate her more. Sky is still my favorite, but THIS is how you write a character whose defining personality trait is that they're gentle/kind and NOT have them be useless. It is ENTIRELY possible to be kind AND still stand up and join in the fight.
As for the sketch, the Sky Mirage was traced in for the sake of detail (like my previous drawing of Sky) as well as the hand holding it because I wasn't happy with my attempt. Other than that, no other major fixes or changes were needed, but I did use a basic Heart, Wing and Four-point Star cliparts to help clean up some of the details.
Pretty Cure and all relate characters, including Cure Prism/Nijigaoka Mashiro, belong to Toei and any/all other respective owners. I don't own the character(s) in any way, shape or form, I'm just a fan!