Shot #4 has the most 'depth', both in outlook and emotion. It has a nice tonal graduation (to my taste), and creates a feeling of nostalgia (again, to me). Build on that for your other shots and see how it goes. Based on the shots, you should be on digital, and if you can re-create that feeling again with shot #4, you may find your style
even w/o putting caption. I can actually create my own with this pictures. Somehow can really understand. Good work.