My client would like me to create a mosaic in the shape of the Disneyland Castle. This would involve me creating an outline of the castle on my iPad (just a black line in the shape of the castle) and then filling the shape of it with the client's images.
The image at a glance would resemble the castle, but close up would just be a lot of photographs taken by the client, at Disneyland.
The final image wouldn't be sold en mass, and the fee would be for my photoshop work in arranging the image in the desired shape.
Would this infringe Disney's intellectual property?