Still trying to identify 3 members

Need a little help to identify 3 members: Yuha, Stella and A-na.

It’s been weeks and I’m still learning to tell them apart! They’re so beautiful and talented but are there any unique features to help a new fan identify them?

So far with the other members:

Jiwoo: Short bob hair

Carmen: South East Asian / Indonesian features

Juun: Blonde hair

Ian: She resembles Karina from aespa a lot!

Yeon: Her baby face