For my first top tip, I have used my lovely daughter Jasmine, one of our chickens and our old Massey 35 as you do.
This is just a fun little experiment to see the affect that increasing the focal length of that lens can have on the background. Think very carefully about the focal length you use when deciding on a shot, as the results can be drastically different, as can be seen in the series of three shots. Jasmine did not move from her position, the tractor stayed where it was, the only change was the distance between me and Jasmine and the focal length of the lens. It's amazing how much the distance between Jasmine and the tractor has seemingly decreased.