Describe how Holbein's work "The Ambassadors" is typical of traditional oil paintings and the manner of presenting the subjects, as explained by the authors.

In "The Ambassadors", the main figures appear aloof and wary, while surrounded by the material goods and symbols of their world belies their confidence, formality, and arrogance. Navigation instruments between them symbolize trade routes to acquire the riches of other nations, a world globe as their target to colonize, and an African to symbolize the slave trade. Their individual appearances, gazes, and objects demonstrate their self-perpetuating intent to conquer and colonize.