Thanks for your input folks.
Well, it looks like the album belongs to a teenie-bopper girl, so I really don't think she means any harm by having it in her collection.
She hasn't implied it's her own work, and she's not making any money from it so I'd take it as a compliment if I were you - she obviously thinks it's good

(this was in reply to your first post)
I don't see it's relevant how old she is. If a kid pinches a couple of sweets from a store you do something, don't you? I don't see how this is different.
humm not sure if it worth the trouble the thumbnail is quite small no ?
I don't see the size matters either. Interestingly a couple of other finds that come up on TinEye are the same size as this one. So I've no way of knowing if those others bought it legally or got the image from her.
And ... yes ... I know that I should take it as a compliment that she feels it's good enough to put it up under her name (which ... even though she doesn't state it explicitly ... is as good as saying it's hers).
Unfortunately bakers don't accept compliments as payments for bread.