There are a few different ways in which we can add details to the mesh for things such as skin pores or even the bumpy elements of the rock-like plates on the model's skin. When creating these details, we could use Alpha combined with the Standard brush, with drag set as the draw option. But I think we should explore the possibilities of the NoiseMaker for this.

The model with details added

Let's start by opening NoiseMaker, which can be found in the Surface rollout of the Tool menu. On opening the rollout, we get a small selection of options.

The Surface menu

The NoiseMaker comes with a few examples that are included with Zbrush. However, we will explore making our own pattern with the powerful noise plug toolset.

Click on Edit and a pop-up window will appear; it includes a window that displays our model. This shows us how the model will look with the details applied. Right now, we can see the default details but we can open up the options further to create what we are looking...