If the story you're trying to tell is that there is more than one Ronnie, maybe put a touch of color in the other Ronnies too - decreasing amounts, but don't make your audience do so much work to find them.
The picture leaves me with questions, what is that big thing just ahead of Ronnie in the line? is it important? I spent a lot of time trying to figure that out, and only after I gave up on that did I notice that there were more Ronnies following along - maybe blur that thing, or give it some motion so we know it's an engine of some kind that's pulling the Ronnies down the line?
Interesting picture - and comes at a good time for me - I'm going to be doing classes in PS shortly and this made me think.
Take care, Margaret