Nanase wouldn't normally wear a top with her name on it, but it's been so long since she's had her hair on color (and in a ponytail) in canon that I worried about her being recognized.
(Speaking of being recognized, the clothes and panel two probably make it obvious, but that's Diane getting the Nanase form treatment in panel one).
This is an idea I've had for a while, though I'm also 99.99% certain Ellen being able to zap clone forms at people has been suggested to me as well. I like this approach of Ellen being able to copy one person at a time and just have a beam for that person's form until they switch to someone else.
(AGAIN speaking of being recognized, that's Grace, Justin, and Ellen in the last panel)
I experimented a bit with how to draw subtle muscle definition in my style, and I think I like the result. I definitely want Nanase to have some definition and bulk to her, but regular lines and too much shadow can stand out more than I want.