Monochrome collage

For the latest challenge I've done a digital collage. Concentrating on texture and patterns - bricks, wood, trellis, plants - I layered and altered various photos of my yard (my theme). I was a little unsure as to whether a digital work would be acceptable but it's a media that I've been experimenting with more recently, and one I feel happy with. Plus there are parts of this that just wouldn't work with a conventional 'paper' approach.