I imported the previously exported OBJ file into ZBrush sub divided the Bristle and Ferrule of the brush and added some detail to it. Then I re export out the model as an OBJ file
I Replicated multiple instance of the Can object. Placed a Cylinder to represent the Paint in each can. and Import the Brush that I previously export from ZBrush and composed the Scene. I placed 3 Area light Above the scene. Then Render