I think it goes great with your other names. It would be weird if your DDs' names were trendy Kinley type stuff, but they're all classic and a little unusual.
I am biased as a susan, but I think it's great. Goes well with siblings. Easy for name based nicknames, I don't see sunny as connected to her real name, but go for it if your family likes it as just normal nn
Married 10/4/2014 (10-4, good buddy!) Baby Boy #1 born 1/9/17 Baby Boy #2 EDD 11/4/18
"It's when you know you're licked before you begin, but you begin anyway and see it through no matter what. You rarely win, but sometimes you do." -Atticus Finch, To Kill A Mockingbird
Re: Susannah
Baby Boy #1 born 1/9/17
Baby Boy #2 EDD 11/4/18
Baby #2 Due 3/7/20