The Old Roller. Critique wanted

Hi, I created this scene and at the level I’m at I’d say this is pretty good for me, but I would love to know what I could improve. I’m not too happy with the sign on the wall but it’ll do for now.

I’d say the individual objects look fine all right, but what is the point that you want to make with your scene?

I think you need a little more contrast between the roller and its shadow.

the roller could be brightened up and the paint in right corner seems to be hovering. An angle from the ground would add a more dynamic look and the grass could be a bit brighter also. The shadow is too distracting for me and the brick takes focus away from the roller. Good aspect ratio though.

Isnt the roller supposed to be a mesh? i thought they were used to distribute manure on the lawn.