The noun 作品 (zuòpǐn) means "work" or "work of art" and refers to any creative product such as a painting, novel, film, or musical composition. It is the standard word for referring to someone's creative output in Chinese and is used across artistic, literary, and academic contexts.
这是他最满意的一部作品。
zhè shì tā zuì mǎnyì de yī bù zuòpǐn.
This is the work he is most satisfied with.
博物馆里展出了许多著名画家的作品。
bówùguǎn lǐ zhǎnchū le xǔduō zhùmíng huàjiā de zuòpǐn.
The museum exhibited many works by famous painters.
她的毕业作品得到了老师的高度评价。
tā de bìyè zuòpǐn dédào le lǎoshī de gāodù píngjià.
Her graduation project received high praise from the teachers.