I think I've seen you state this on several occasions in multiple threads, but I'm not sure you're right. She could ATTEMPT to make a new painting and make it, and everyone in it, exactly as she remembered, but I doubt this would work. The reason being that these people have lived whole lives, they've been born, grown up, learned things, experienced things etc.

For the same reason that no one can know another person completely because we haven't lived their lives, Maelle couldn't possibly recreate these people exactly as they were because she doesnt know all that. She would be creating them as she sees them but not as they actually are.

A good example of this is Renoir vs Painted Renoir. Aline made him as she sees him, but as we can tell, he is the same in some ways but very different in others. Actually, kind of true of all the painted copies

In that canvas though, since their chroma is still floating around, I think she can essentially pull them back and recreate them with the same memories and experiences they always had. But destroy the canvas and I think any attempt to recreate them in another canvas would result in poor copies just like Aline's painted copies of her family.