Not trying to critical... just had an observation when I was thinking about how I would use the set. I was thinking about how I would use it on an ortho keyboard, like the Planck or Preonic. I occurs to me that, if you use the esc and return keys with the magenta font, then this would look good with the raise key also with the magenta font, but, if you use the magenta esc and return with the white font, then all of the gray keys will have the blue font, except the raise key, which would be the single key with the magenta font. The first layout seems like it would look good, but the second one seems like it would look odd, with only one key with a magenta font sitting there unbalance.
Anyway, like I said, I just tried to visualize it, and it didn't really seem right, if you used the accent keys, which I like. Just my opinion, for what it's worth. Also, if you were doing a Preonic build and wanted to have a caps lock and second shift, there wouldn't be dedicated keys for that, but I realize it's pretty common to use other keys, like meta or code for such things.