My son picked this as the Sketch of the Week, noting that he liked the angle of her head, and that it came out well overall.

He wasn’t alone. Folks glancing at my journal last week were invariably drawn to that sketch, and thought it “came out well.” I tend to disagree, which makes for sort of an instructive example:
This is a good sketch, but a poor likeness of the model. I was working from this image of Anya Taylor-Joy:

There’s a slightly broad roundness to ATJ’s face, that coupled with her fine features is vaguely Fae and unnatural. It’s that presence that leads to her being strong in the roles where she’s strong.
I caught something of her gesture and posture in my sketch, and maybe even some of the energy in her hair, but I captured none of that changeling quality that makes Anya Taylor-Joy immediately identifiable as Anya Taylor-Joy (hell, the AI I’ve been monkeying with to try and automate alt text for images—and which more often than not sort faceplants—correctly identified this black-and-white photograph as Anya Taylor-Joy; I think the above alt text for that image is the first time I’ve ever used the AI generated attempt without modification).
I tried for Anya Taylor-Joy, and ended up with a rough approximation of a Nagle Woman—given my background and age, that isn’t surprising. Heck, it isn’t even bad: I sorta like Nagle, and the sketch at the top of this page is leagues ahead of where I started a year or two back.
It’s not bad, but it isn’t Anya Taylor-Joy, either.