As mentioned previously, I have taken a few photos of Bodiam Castle (National Trust site in Sussex) and have been pushing them through Photoshop.
The wonders of Photoshop filters can never, ever, be overstated. Here you can see the results of a ten second experiment with a single picture. The first image is the basic image which was then passed through the mosaic filter, the texturizer and desaturated. All of these produce some interesting effects which radically change the impact of the original photograph.
All this strikes me as pretty impressive for what took up about 5 minutes of my life. In fact, it took longer to write this post about the effects (and upload the images) than it did to create them. I really do like photoshop 🙂