Thinking about how Cass's OG artist draws her in the Batgirl run and how there's just something about it that no other Cass artist has been able to replicate. The way she's so clearly 16/17, the youthful playfulness in her eyes, the unique features and expressions on her face, the casual clothes she likes to wear (and the lack of whitewashing but that's more the specific colourists). The way she doesn't look perfectly glamorous but instead looks human, like a teen who's been homeless and on the run since she was a child and is only now rediscovering happiness.
I don't hate Cass's features maturing as she gets older, and since she should be around 23 in canon it's not that relevant anymore. But when it comes to teen Cass, no artist has come close to this. When I picture teen Cass I am always thinking of Damion Scott's artwork.
Also minor nitpick, I miss when she had that sort of gangly/sinewy Bruce Lee build that made her actually look like a fighter. Way too many artists just draw her with the 'comic book woman' body type.