Backward Design, or Outward in?

An avid puzzler,

I read fiction with similar tactics

Building the outside edge, the boundary,

Then slowly crafting the faces

The recognizable parts, the eyes,

And bodies begin to emerge 

As I weave toward the center

Keeping the background for last,

The sky, the grass, the foliage:

Greens and blues that complete the story.

And when all the pieces are in place,

I want to take them apart and read it again.