Unfortunately, the flakes are practically non-existent in Galaxy. You can see occasional glimmers of them, but they're really small, so they hardly stand out sadly. I tried to photograph them here:
The little bits of shiny you see are the flakes.
So is Galaxy worth buying? Well, without the sale, it's only AUD3, so it's rather cheap anyway. If you don't have anything similar, it is plenty pretty. But if you do have something similar and just wanted it for the flakes, I would recommend giving it a pass.