Hai Jess :)
Good work, very good.
I like green diamond, entry 11.
The slogan is better with the blue color, not black, and if you can add green line in both sides of the slogan, like the entry 3.
Another thing. In the diamond, green version, if you can add the "light" as the entry number 12 ( I'm referring to the shine...) I hope that i give you the right suggestions.
Let me know.
MAX