As a veteran, I see this as a loved one and a photo of her military loved one.
B & W the best. Try some different filters to increase/decrease contrast. Looking good.
Number two. You can better see the fish tail.
Most definitely the first one.
A little. The "fence" reminds me of the Civil War. I think that should stand out more,
The first one. More contrast. Did you use a contrast filter?
Without. My first look drew my eyes to the car.