Nice photo. Here is another take on what EyeSpy did.
Crop at 4x5 aspect ratio to give the old "golden" proportions of view cameras since it is a back-and-white classic style photo.
Cut the part of the sign that is showing on the left lower corner, It is rather distracting.
On the right cut just before the trucks exhaust and tank, both are too mechanical and specific.
Put the black metal column at about 1/3 in the frame.
Leave the "serving..." sign as is. It adds some interest in the background and begs the question "What".
Finally use vignetting to darken the corners and create a focal point. After all the photo is about the girl and not the truck or the sign.
The photo will look then like this: