Thanks for the new trials. Entry #18 is closer, but the square symbol may be too simple. We would like to see blue with a silvery/grey, but this combo doesn't feel elegant.
Still drawn to #18, and would like to see the blue with a silver/grey. Also, a more sleek, sophisticated font. The square symbol is OK, but could you do some trials with that shape (don't create an S). Maybe outline the squares? Not sure....