I discovered that it's much harder to take a photo of a sandwich than I initially thought. I left this until a little too late yesterday and was feeling hungry and wanted something quick, so both the sandwich and the photo were done quicker than is ideally needed for a decent butty and a decent shot!
I was trying to focus on the smaller detail such as the bread crumbs and tomato seed but I think to really achieve what I wanted I'll need to dig out my macro lens.
My lighting set up is better than it used to be but still very amateur. I have two bright desk lamps that I can alter the direction of, and white sheets of paper and material that I can use as a back ground and to bounce light off. Over the next few weeks I hope to get something a little more workable set up!