@suzanne234 Suzanne - you can do this with your camera (I promise). You can search online for "[your camera name] aperture priority" or similar and there are lots of resources available to help, including Youtube masterclasses.
@peadar I have watched quite a lot as you suggested and I think I am getting slightly to grips with it, some things it seems to work beautifully on, others, not so! Maybe its just pot luck! I shall continue to read and watch as much as I can.
Nice shot