What does the episode surrounding this portrait indicate about the relationship of Venice and and the Ottoman Empire in the wake of the conquest of Constantinople?

Although you did not present the portrait to which the question refers, we can say that the relationship between venice and the Ottoman empire in the conquest of Constantinople can be represented by the period of peaceful relations between the two territories, not to mention the episodes of cultural exchange that that episode took over. In addition to establishing very beneficial business relationships for both.

adopted the practice of proskynesis, a persian court custom that involved bowing down and kissing the hand of others, depending on their rank.

warfare was the primary means of cultural transmission in both regions.