I agree.
As far as I remember Dominique Paoli identified the girl as Archduchess Marie Valérie. I didn't have a closer look at the photo and just memorized what I once read. But yes, I also think it's Amélie - although it's a strange combination, because there aren't - at least - known pictures of Amélie and her cousins except for Marie Valérie and the one taken at Ludovica's 80th birthday in 1888.