I'm astonished that this is your first screenshot Stationbeem, you're a veteran, you've been here for years.......Are you sure you haven't posted anything before.
Very nice pic anyway, just remember that a screenshot is a photograph, so, if you're good with a camera, then it's basically the same principle on your computer. For a handy tip for beginners, don't forget that you can press P for pause if you want to stop the train before you hit the print screen, it doesn't stop the clouds from rolling past though.......