Hi Xavier,
Thank you for your submissions.
For entry #315: I don't think this look is what we are after. It looks a bit too much like the trendy gel button look that was popular years ago. We prefer simpler and more refined looking marks.
For entry #323: I think there could be some potential with this concept, but it's not quite there yet. I can't quite put my thumb on what you could play with, but maybe some additional concepts with this same type of idea for the mark. The typeface is ok, but I would also try playing with a few others as well.
Cheers,
Jeff