Hits diminishing returns real fast but in modest amounts, slightly good.

"Try adding some opal seafoam to the wings like you did with the opal blue."

This is fine, not a big deal either way.

"Hmm..." she turns around and googles some stuff. "Okay, try restructuring the wings to be shaped more like this than this."

The magic is indifferent to wing structure in this range.

"Yes, but it will probably be better for flying. Try extending the crescent pattern up from the primaries to the whole wing."

The magic likes that a little.

"Try coiling silver helix bracelets over your sleeves on the biceps."

It likes that a little more.

"Now add opals and diamonds."

That is better.

"Magic really likes its glitter, doesn't it. Try adding a beaded fringe to the hem of the skirt."

It likes that but not very much.

"I think at this point we're micromanaging enough that you'll get much better returns from getting opinions from someone who isn't me." 

"Alright. The magical girl club should be useful for that." 

She opens her laptop to see if the teacher has emailed her about when it is. He has; the next meeting is tomorrow, and a different teacher is going to drive her after class. 

Jaromira leaves to manage the gossip mill's interpretation of recent events. 

Katarzyna stays. Going back to the library would involve more interacting with people than she wants to do right now; the internet is an acceptable source of information, and, when it comes to magical girl stuff, much better than the library. 

She waits patiently until the end of classes the next day. 

The big public school is in Phoenix, and its magical girl club has seven members not counting Katarzyna:

- Mercedes, the club president, who introduces herself and everyone else, and has green dragon wings and a dragon tail and horns and wears a lot of gold silk;

- Natalie, approximately a naga, probably culturally appropriating the Roma or at least the pop culture conception thereof with that outfit, jingles when she slithers;

- Alexis, with rabbit ears and a cotton tail, leaning unnecessarily on sex appeal for costume interest but also themed around lavender (plant, not color);

- Faith, who is three feet two inches tall and going for a vaguely period effect with her clothes in homespun-ecru and shades of brown;

- Isabella, with pointy swift wings and nothing else, drapey dress over a clingy underlayer in dark red and dark blue festooned with a motif of circles with circle cutouts;

- Gabrielle, yellow ballgown and sunset-colored wings;

- Brooklyn, managing pants with enough layers and embroidery and rose-themed accessories accenting the black and gold base color scheme that it must take her an hour to get it all right every time she needs to redo it, black bat wings with gold tats of roses.

These are magical girls and therefore she has nonzero desire to make a good first impression. 

"My name is Katarzyna Kozlov--I apologize if that's hard to pronounce, my parents are from Poland. It's lovely to meet you all." 

"Nice to meet you too," says Mercedes.

"Can we call you Kat or something?" asks Natalie.

"Is Zyna acceptable? I share classes with a Kat, it would be confusing."

"Zyna it is!" says Natalie.

"What are your powers?" asks Isabella.

"It appears to be some sort of--magic perception. Initially all I could sense was that I, myself, existed, but I can sense all of you, as well." 

"I have that, I call it my libido," hoots Alexis.

"Huh," says Isabella, ignoring Alexis. "- can I try something with that?"

To Isabella: "Certainly."

To Alexis: "I believe that your libido draws your attention to the fact that you know we are present, rather than informing you if you had not previously known and/or introducing a new avenue to this perception. If I am wrong, please inform me."