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They are similar, but stylistically and very obviously, they are different. They are close, but not close enough to be considered "ripped" in a court of law. They are heavily inspired by, and on top of that, there are plenty of other assets that are brand new and not even associated with the original Link's Awakening DX.

There is another pack on here that I'd argue is VERY close to your initial assessment, but not this one. Check out other packs like this and you'll know exactly what I mean. This one is far more original.