Training to build a snowman is a lot harder than you'd expect.
Cosplayers are already awesome. The sort of dedication it takes to assemble a really amazing costume is staggering, and I wish I even had the crafting talent to try. I don't, so I like to live vicariously through other cosplayers. This Elsa is the vicarious living that makes you feel really good about yourself.
The charity link in the description is broken, so here's a working one.
An Elsa cosplayer may not be able to cure terminal childhood illness, but it's very clear she can bring them some joy, and inspire the rest of us to offer some support.
For such a fun story, this one's really... heavy. (Author's Note: I make no apologies.)
Why are you asking me? That's your job.