Hello Grandad,
There are a few things I would like to point out here. First, the face board on the roof, it gives the (optical) impression that it is coming out of your should & again at head level. By moving a step or two to your right would reslove this. Secondly, the pad lock again gives the (optical) impression that it it hanging from your arm, not the door. The watch on your arm there is giving off some glare that is a we bit distracting. Finally the lighting, you could have used a reflector or bounced some flash off the barn at an angle fro below to lighten up the shadow on you face. Over all I like the shot. Hope these little tid bits hlp you out.