Dice using Boolean 3D model

Hello Everyone!!This is a simple model of dice (without any external material).

I have used two layers of Cube as inner and outer layer of the dice. The reason for using the inner layer is that, I am using boolean subtraction on the spheres (as numbers) so that we can see two different colors. (you can refer on the wireframe)

Then the glossiness is been added with the default materials on the floor (the plane), so that the reflection can bee seen.

I am doing it as a small project regarding objects (same as the glass one previously). So, please comment if there are any improvements to be made. Thank You!!