The first image is the one she was referring to, the second is a similar cover - I believe more of a close up of the pocket? Can't really be considered "a big round thing".
So that got me thinking about other models on covers. Riley in Everything Beautiful by Simmone Howell is a pretty big girl two. Yet in neither of these covers does she appear anywhere near big.
I don't understand why characters are getting so represented on covers. What do you think about this? Do you know of any other covers that do this? Not white-washing covers, that's a different topic. But covers that have models of a different size, or where there is clearly no disfigurement, disability when there should be. Have you seen any? If so, please link to the covers!
EDIT: Brilliant news! Mollie commented directing to a post on review blog Stacked, with news about how there is now a larger lady on the cover for the remarketed Huge by Sasha Paley. And how fantastic does she look? Although it's not exactly the same subject, the post also links to other posts where books about larger girls have covers that either have no models on or body parts of thin models. Check them out, they're very interesting! But it's great to see this break through!