When we homogenize composite materials by using Mori-Tanaka scheme, we only consider the volume fraction of each inclusions. Why don't we need to consider the number of inclusions? Let's assume both of picture above has same volume fraction of the inclusions. If we use Mori-Tanaka scheme, they have same homogenized modulus, don't they? However, I think they should have different modulus. what do you think?