Possibly a holograph.
stratocumulus
Alto
Spiral.
Those are called, "Constellations".
Demotivator
Length, Breadth and Height or Volume.
Faces are a term used in Geometry to describe a side on a three-dimensional figure
Proprioception is the medical term meaning three-dimensional perception.
trompe l'oeil
Having three sides.
three dimensional
"3D"
Cubic
The term planar means having a two dimensional characteristic. A polygon is a planar figure.
Perspective, perhaps.
Probably not. We use the term 'volume' to express the amount of space occupied by three-dimensional object.
The term for the creation of the illusion of three-dimensional texture on a two dimensional surface is "visual texture." There are many ways of achieving visual texture, including relief, shading, and perspective.