Ivory was 2013, doubt they have any but that would be my first choice. I searched their site 2-3 weeks ago. Blue wave was '12 or '13, so probably same deal there.
The new blue looks good, but no shots surfaced other than the overly metallic looking glamour shot, which isn't what it will look like in person.
Spring green is very close to cb green, mine looks Ballin' imo.
Hard to say what you would prefer. Have her send you pics from her phone and make the best call you can.
My first choice would be ivory or blue wave as well. But I really like the green.
Get an MT, if at all possible. Good luck!!!