When we compare this piece with the two eastern Luba stools in the display case, we get a better image of the style characteristics of the Master of Buli.

According to some researchers, this piece was not made by the Master of Buli, like the cup bearer and the two small figurines in the display case, but by an imitator. One of the stylistic differences is that the face of this piece is supposedly rounder. But the hypothesis that we are dealing with two artists is still premature and is disputed by other researchers.