Our competition handbook states;
All parts of the image must have been created by the author entering the competition. This includes backgrounds and any additional layers.
The image above used the authors own photos of logos and textures from planes to create textures in the image, so adhered to our rules.
This is not something which the committee can easily check, so we rely on members to be honest about how their images have been created.
You can create your own catalogue of textures. Peeling paint, fallen leaves, fabric, crushed ice, or wood grain can all be used to creatively enhance your images. Using textures with different blend modes in Photoshop can give you some really creative results. Why not give it a try?