The colors are quite confusing to me. Why have the black on the top of the background and white at the bottom. For the shadow to stand out? I guess it could be just me but whenever I see like an object on a plain background, I think of those art studies, I think it's called still life? (Correct me if I'm wrong) Maybe you can define the surface it's on to give more depth. Other than that, it's a nice looking aguacate you got there.