Masons working on a cement block wall

A new shopping center is being built on Greaves Road, not far from work. When I go by, I often stop to check on their progress. When the masons were building a wall near the road, I took some photos to use as reference for watercolors. Here's the reference photo:

And here are the watercolors. You can see that I switched the positions of the two workers so they're facing each other. The first one is 7 x 10 inches:
The rest of them are 12 x 16 inches, quite a bit larger.
Next attempt. I tried to paint loosely for this one, and I like the way the shapes merge.
And another one: