Create an ultra-realistic and cinematic image of Cleopatra at a grand Roman gathering, surrounded by lavish decorations and high-ranking officials. Depict Cleopatra in the foreground, elegantly dressed and engaging in conversation with Julius Caesar. In the background, show a group of Roman senators and politicians watching her with expressions of suspicion and jealousy. The setting should be richly adorned with Roman columns, statues, and tapestries, emphasizing the opulence and political tension of the event.