Answer:
depends on the laws of the country in which you are working
Step-by-step explanation:
This is very vague and usually depends on the laws of the country in which you are working. In some cases, Iris would need permission from the client in order to display the work. In other cases, Iris would not need anything because she is the original creator of the content. This mostly depends on the laws of the country and whether or not a specific contract was created between Iris and the client, stating if the content rights where transferred or not.