Why did Imants Tillers & Lin Onus specifically use appropriation to effectively

Question: Why did Imants Tillers & Lin Onus specifically use appropriation to effectively express thier ideas!?

Im doing an art appraising assignment and I need information to the above mentioned question on these two art pieces:

The Nine Shots - Imants Tillers
Fruit Bats - Lin OnusWww@QuestionHome@Com

Best Answer - Chosen by Asker:

Hey Cara! I think it is because of the cultural significance of the original artworks, that when combined creates a bridge between cultures that are significant in their lives or heritage!.
Love, JaimeWww@QuestionHome@Com