with all the new Colors (i like the new complexity) most pentacles look just messy or kindergarden.
i was ponderung what to change to make an more appealing look and my idea is to change the Glyphs.

• runes should form nice geometrical forms over multiple blocks.
  circles, rectangles, infinityloops, pentagram...whatever

• the "lines" for the geometrical forms should look occult,,,,maybe contain the Glyphs (as small icons).
  example circle from wikipedia > https://commons.wikimedia.org/wiki/File:Circletriangle.gif

Just to add to this a little, but the colors make it basically impossible to lay down a floor that you can see all of these chalks on. The greys are particularly hard to see and putting down a black floor would generally make the most sense to see the various shades, but that leaves the black chalk nearly invisible.