the infringement you mentioned should be trademark infringement! If the shape of camellia is registered on the trademark of luggage by others, and the shape is exactly the same, it is suspected of infringement! If the camellia you are talking about is only decorative, does not involve trademarks, and is different from other people's trademarks in shape, it is not infringement! Another problem, if your things are completely copied from others' and the other party applies for a patent for appearance, then you may also be suspected of patent infringement!