ZBrush Skull, Substance Painter ///

I realized this 3d creation (which is reminiscent of the gear of war logo) ... using alpha under zbrush ... I made the drawings under illustrator and import under photoshop to give volume in black and white, I then used these alpha in zbrush to extract the shapes and placed them on one another, I created and duplicated a box on the back to achieve support. I then used the set with brush zbrush and finally I exported a low poly and a high poly under subsistence painter to texture the whole ///