I did this on white paper and so dont have patches of undercolour showing through. The guy in yellow with his hand behind his head, half in and out of shadow, attracted me at first, but as a worked, his dining companion, the lady with the sunglasses, took over as the focal point.
I am not sure whether a unifying undercolour might help here. It seemed to make it more laborious covering all the surface with paint rather than being able to leave slivers of another colour. I also had concerns over the large areas of shadow and the rather crudely painted roadway, but I will give it some space and look at it again later. With acrylics reworking areas are very straightforward.
Other acrylic paintings are on my website: grahammcquadefineart.com