WHen you said, "They don't know what it knows..." I would change the "know" into "understand" because putting two of the same words into the same sentence (like I just did) doesn't sound that good. You are right about the ending, I would change it to, "But a rose can't cry/ For now at least, it's alive." Something to that extent.

Serpent of Nepthys (SON)

I liked this a lot, however, I thought that the last two lines didn't really fit in with the rest of the poem. But anyway, it was a good poem and it flowed nicely. Keep up the good work!
~Lsay312