Zhang Chengjun in Nanjing, Jiangsu is in Fujian.

(1) In this case, Zhang Chengjun is the author of the photographic work The Sunset Comes Home and enjoys the copyright according to law. (2 points)

(2) Huiquan Cup of Fujian Youth Photography Association Hui 'an Women's National Photography Grand Prix-The collection is a compilation, and the copyright of the collection is enjoyed by the compiler, but the copyright of the works that can be used independently is still exercised by the author. Even if Fujian Youth Photography Association agrees, plaintiff Zhang Chengjun still has the right to claim rights. Article 14 of China's Copyright Law stipulates that the copyright owner of an assembly work shall not infringe the copyright of the original work when exercising the copyright. (6 points) (3) Without the permission of the author Zhang Chengjun, the Australian and Chinese companies and mobile companies used the work "Going Home at Sunset" to make "Guaguatong" card faces, and their actions infringed the copyright of Zhang Chengjun, so they should bear the responsibility for copyright infringement. Although the mobile company signed a card design agreement with the Australian-Chinese company and agreed on the exemption clause, the agreement was signed after the disputed "Guaguatong" card was produced and issued, and the exemption clause agreed by both parties cannot be used against the copyright owner. The mobile company should bear the corresponding tort civil liability. (6 points)