#14 looks good. I have a couple thoughts, though. I'd be interested to see "EFG" as all the same color, with a "stream" cutting through it like you have it. I'd also be interested to see the "E" in #14 be made whole, without the chunk cut out of the left side. Lastly, I'd be curious to see a version with the "stream" winding from the top left corner of "EFG" to the bottom right corner. Not sure if that would work, though.
Thanks for responding to my notes. Let me know if I need to clarify.