My initial instinct would be to, in the first instance, say something like “A drawn image of a woman; she looks like X and is doing Y. The same woman appears in numerous images in this book; in the following descriptions, she will be called ‘the woman’.”
Then for later images: “The woman has shorter hair and sits on an airplane”.
At NNELS, we sometimes recommend this approach, if appropriate – like saying in the first image “A black and white photo of an X. All images in this book, unless otherwise noted, are black and white photos.” Then, you don’t need to provide this information again.
Creativity is allowed! As long as the approach makes sense.