Interpretations of Electric Prisms

After Sonia Delaunay, copyright Nina Leung, 2013

Here is my own attempt at creating the same frenetic rhythm of Sonia Delaunay's Electric Prisms. Once I started, I didn't want to stop. It was so much fun making this and choosing colors. Thankfully, I have a nice selection of pastels, so the colors were almost unlimited. 

Sonia in Rio, copyright Nina Leung, 2013

In this watercolor, I thought of the mosaic sidewalks in Rio and I combined that with the energy of Electric Prisms. I like to think of Sonia being inspired by Rio and coming up with a sketch like this.

Muted Energy, copyright Nina Leung, 2013

Is it possible to recreate the energy of Electric Prisms using only graphite and terracotta pencil? I thought only of shape. How can a shape have an energetic rhythm without the use of color? This is what I came up with. I looked carefully at the shapes Sonia Delaunay used in her painting and mimicked those with the hope that it would feel energetic. I think it works, though it's a much more muted version.