Spiral: 

Glow: It is a spiral and the triangles that make it up are defined.

Grow: Next time make it with a thinner longer sheet of paper so it will spiral more.

Knife plates:

Glow: They are simple but effective.

Grow: Each plate is not the same size, so next time measure more precisely.

Gathered Plates:

 Glow: They look super cool and interesting.

Grow: Next time use a larger piece of paper so that they will spiral as you make more.