Pulled up the "Apply Surface Texture" part of Painter and decided on the "softness" of the shape. The softness slider has a tendency to control the thickness of a shape.

Had to move the light source quite a ways down and to the right so as to not "blow out" the colors on the shapes.

Applied the same process to the other shapes. Each shape had to be custom done, as the same setting would not work for all.

Made an oval shape for the "cockpit" and shaded it to make it seem like a hole.