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.
For entry #352 #353 and #354 does not capture the look we are after. Entry #355 looks very dirty and seems a bit generic. It looks a lot like the stock 3d logo you can buy from various logo sites. Entry #359 is interesting and has some potential. You could experiment with this concept. Entry #361 has an interesting 3d feel to it, although the overall look is not quite there.
I still think your #323 entry was the strongest and would prefer to see some variations and developments on this one.