Today's experiemnt

Rendered with Mudbox's metal texture.

Another view

Stenciled and "flatten"

All the bumps are delicately controlled by a digital tablet.

Another view

Stenciled surface and smoothed

Stencil is really useful to create relieves on the surface of a 3D model.

I tried to sculpt Greek relief on the surface of the cube. In regular 3D modeling technique this type of modeling takes long time especially only with Maya but it this case (Mudbox with stencil) took only 5 minute to sculpt the surface.

Experimenting the "imprint" tool with a image stump. 

Subdivide the polygon (1.8 million polygon)

My Whale model in Mudbox