Maybe you are only doing some initial conceptual Illustrations that then someone else will need to rework and/or modify them further in Illustrator? It is hard to say without some more info as to the reason they are wanting the AI files.
Maybe you are only doing some initial conceptual Illustrations that then someone else will need to rework and/or modify them further in Illustrator? It is hard to say without some more info as to the reason they are wanting the AI files.