I think composition is lacking here.
No, there isn't. the composition was made with the same intents you are criticising.
There are three things asking for attention and you aren't giving any hints where the viewer's eye should sit.
The sign in the front is prominent but boring with arrows that point to the side.
The arrows are pointing to the seller - the guy sitting ramrod straight, Forrest Gump style in his folding chair, but more importnatly, this badly stenciled sign is pointing a driver to a Boiled Peanut stand. It is the crudity of the sign, the portable gas bottle, the folding table which liends itself to Americana at its best.
The sign on the left is bold but doesn't give any more information or have any interest.
It is the very repetitiveness of the sign which to me makes it quite interesting. It is different from the first sign, in a sense, almost artistic given the artist who likely painted it. In a second sense, as with the first sign, helps to frame the seller, who to me wasn't as important as the setting itself, hence his position and his gaze - looking past me for that next sale.
The man should probably be the main center of interest but he is off to the side and close to the edge.
How can you possibly second guess what the main intent should be? Especially in this type of setting, but I guess this is so much a southern thing as to go past you in that sense. Some things, I guess are too regional, but even a lack of understanding shouldn't permeate a second guess to the intent of the artist. As a question, it would be an acceptable comment.
If the picture had been of the man more prominently with the signs as supporting elements then it would be more of a character study with the signs giving hints about him.
If I had wanted a picture of the man, don't you think I would have made such a statement? Hell, that would have been easy but I was more into capturing a piece of the rural south, hence the title, "Green Boiled Peanuts." Didn't say, "Crusty old man selling green boiled peanuts."
As it is, it's incoherent, and making it b&w doesn't add gravitas