My book contains digital art. Will my brother get bad deeds?

Salamu Alaikum, I have known for a while now that drawing humans, animals, or any living thing is haram. My siblings and I used to draw, but we don't anymore. However, my little brother still does digital art occasionally. I am a writer and write fiction (nothing haram, mostly educational). For my books, I need book covers. My first book had an AI-generated cover. For my second book, I had my brother create some art that I'm using for marketing. I didn’t think much about it at the time, or else I wouldn't have asked him to do it. But now I’m wondering if it is haram too. It is a drawing of a boy and a girl, both have faces. If t is haram, will we be accumulating bad deeds for every printed copy of the book? Or am I overthinking this? The book hasn’t been published yet — only five copies have been printed so far — so I can still change the cover if necessary. I just want to make sure I’m not doing anything wrong and seek guidance on this matter. DO i need to change the cover to something that doesn't contain faces. What are the rulings? What if I have I'm remove t faces and make it a faceless drawing? Can I do a silhouette of a face? Jazakallahu Khair