Jazzing up old designs

I'm playing around with gimp (a photoshop-like tool) to add some fullness to my designs.  It's nice to have a better selection of colours and gradients. With the broccoli picture above, I like the way the curves lines contrast the hard edges of the pentagons. I need to update PolygonRnD to give me higher resolution on the small pentagons. Originally when I made the software, I did not allow for changing scale so there was no need to output more than 3 decimal places for the coordinates...now I have to go back and fix it.  I'll get around to it eventually.

Here, I just played with gradients and shading outside the pattern. I like the warm colours as well as the blending of the types of pentagons.  I posted paper versions of this in my office with the hopes of capturing some young minds in the patterns.