Experimenting in Photoshop

Having found an image of a hedge on Google, I opened it up in Photoshop and started experimenting with cutting it out in a key hole shape.

Originally when I came to do this, I duplicated the hedge layer and on one of the layers I changed the opacity so that it was transparent. I used the eraser tool to round the shape. I found that the result of doing this wasn't that successful, so I started again and this time used the pen tool to go round the shape.

This is the result I got from using the pen tool. I also dropped in an image that I found from istock, just so that I had an idea of what it would possibly look like with an image behind the keyhole.