Thanks for the feedback ladies! I suggested it to DH and he's withholding judgment at this point. We'll add it to our list anyways.
By the way, since I live in Canada, Marlena would be pronounced with the R sound, so Malena isn't the same thing.
I'll keep brainstorming, so hopefully we end up with 3 or 4 good options by the end, and can settle on something good when this little bean makes an appearance.
Or, maybe SneakySparkle will be right, and it'll be a blue one! Not holding my breath....