I think Cullen is just really random surnamey for a first name. And the natural nn seems to be Cul which again is off. Then I internally think that mom was a total twilight fanatic. I think Cillian, Colin, Calvin or even Callum is better.
Your first two have such great classic names, Cullen seems sort of odd and a little too similar to Caroline. Adding Carter and Carson to pp suggestions of Colin and Calvin.
Cullen = Twilight for me forever. It's also definitely very last name-ish and I would feel like if it were used as a first name I would assume the parents were special snowflakes.
Love Cullen! I didn't see twighlight so no reference there. If you wanted something different I would not go with Colin, really boring in my opinion maybe just not my style. Calvin, Colt, Chase, Cash, Carter?
I love Eve. I didn't see/read Twilight, so I don't associate that with Cullen. Even for people who do, it isn't going to be part of pop culture for much longer. If you love it, go for it. I agree that Collin is a boring alternative. Maybe: Carter or Corbin.
Re: Team green...thoughts?
I prefer Eve as a NN, Evelyn as Fn.
Cullen makes me think of Twilight. I don't see it as a FN.
Eve is nice.
Cullen- pretty bad. I would just use Colin. Kinda matchy with Caroline though.
Eve is fine.
Cullen is NMS but I have heard worse. It did instantly make me think of Twilight. I grew up with a Callin, sounds similar-ish.
Suggestions; Benjamin, Theodore, Calvin, Ian, Ethan.
cullen not so much
Cullen- I like and didn't think of Twlight
Other boy suggestions: Callum, Conor/Connor, Colin, Ciaran/Kieran, Kellan
Baby #2 Due 3/7/20
Samuel Jacob
Due 2/16/17
ETA But I do very much like Eve.
+1 for Colin, Connor or Callum.
Eve is nice, but too short for my style.
I'm not a big fan of Cullen. I like pps suggestion of Calvin.