"Add blue and seafoam opals to the places where the laces cross on your feet." 

Ooooh.

"Do your toenails like you did your fingernails." 

That helps a bit more than doing the fingernails in the first place.

"The elf ears are a nice touch, in my opinion. Let's add cuffs that match the earrings going up to the very points." 

The magic likes that a little.

"Hm...what happens if we add smaller silver opals to the earrings and cuffs and circlet?" 

Helps a little bit.

"Okay, let's try rings--one on your left middle finger, one on your right ring finger, one on your right index finger, each one matching one of circlet, earrings, and necklace." 

Meh.

"Hmm. Let's try subsets of the rings." 

Any one of those alone is a bit better than all; the one matching the necklace is best.

"Hmm. Dress details--how do wide flowy sleeves with embroidery along the hems compare to what you have now?"

That's a weak improvement.

"Alright, let's try adding bracelets--let's start with a set of bangles on each wrist, three of them, one in each color." 

That's good.

"Okay, now let's add tiny diamonds to the bangles--white on green, green on blue, blue on silver on the left wrist, then the other way around on the right wrist." 

That's even better! Katarzyna is definitely magic! She can tell!

Eeeeeeeee! 

Can she tell how many spells she has? 

The answer is that she does not have spells, hers is the freeform kind!

Huh. Neat. 

"Hmm. Let's try making the bodice a bit looser and then adding one of these," she says, gesturing at a picture she's pulled up on her phone, "but in silver for the metal and blue opals for the stones. And we'll probably want to alter it a bit more to avoid the plagiarism thing--let's turn the ropes into filigree like the necklace and tiara and so on, and the centerpiece...how about an eight-pointed star."

That's a good addition.

"Hm...let's add another set of crossed filigrees over the hips, but without the centerpiece." 

That's neutral.