All Roman art depends to some extent on Greek art. The subjects, the styles and the media of Roman artists were all derived from Greek precedents. In all the arts apart from sculpture, however, there are very few exact copies. What we see instead are creative adaptations. Roman architecture, for instance, is closely patterned on Greek architecture.
Roman temples are inconceivable without their Greek predecessors, but they remain distinctly Roman.
In painting, the Romans borrowed Greek subjects and quoted from Greek works but painted them on elaborately frescoed walls. They seem to advertise their artificiality. These elaborately painted walls, moreover, by appropriating a wide range of styles and subjects, and including Egyptian elements along with classical ones, proclaim the triumph of the Roman Empire. The same materials, the same techniques and the same styles continue in use. Distinguishing between Greek and Roman examples is often a judgment call.