Bright and Unique Sibset

This is my current favorite sibset:

[name]Reverie[/name] [name]Maria[/name], [name]Caspian[/name] [name]James[/name], [name]Zinnia[/name] [name]Grace[/name], [name]Elias[/name] [name]Henry[/name]
nn: Rev/Revi, [name]Cass[/name], Zinn/Zinny, [name]Eli[/name]

What are your thoughts?
I really love that they are all longer names with short, easy nicknames.
I like that they are all unique and unexpected, and the happy, bright feel that they have.
I love [name]Elias[/name], but fear it is too popular - I am open to suggestions on this one.
Not sure about [name]Grace[/name] as a mn - too common? Suggestions also welcome here!

[name]Elias[/name] doesn’t quite fit with [name]Reverie[/name], [name]Caspian[/name], and [name]Zinnia[/name]. It isn’t that [name]Elias[/name] is too popular - it isn’t - the name just has a different feel. To get to the nickname [name]Eli[/name], perhaps you could try…

[name]Eliam[/name]
[name]Eliezer[/name]
[name]Elihu[/name]
[name]Eliseo[/name]
[name]Elian[/name]
[name]Aurelian[/name]

Some of those are probably a little too colonial…

I think they all go well together, and I [name]LOVE[/name] [name]Caspian[/name], but I don’t like [name]Elias[/name] and [name]Grace[/name], and I do think they’re too popular, especially in comparison to [name]Caspian[/name], [name]Reverie[/name] and [name]Zinnia[/name]. As for [name]Reverie[/name], I like it better as a middle name personally, and [name]Zinnia[/name] I could take it or leave it. I love your reasons for liking these names.