First, let me complement you on your kiddies names, so classic.
I think it goes just fine with your current names. To be honest, [name]Sunday[/name] reminds me of [name]Nicole[/name] Kidman. Although, I really like the name. It does sound peaceful and serene. However, I don’t really like it with the middle name [name]Savannah[/name]. I like [name]Sunday[/name] [name]Rose[/name], [name]Sunday[/name] [name]Hope[/name], [name]Sunday[/name] [name]Elizabeth[/name] and [name]Sunday[/name] [name]Diane[/name]
Thank you, I take alot of pride in the names that I’ve picked.
[name]Savannah[/name] is a personal meaning to me. Other middle names I would consider are [name]Jane[/name] and [name]Claire[/name]. [name]Both[/name] family names.
I am also playing around with
[name]Sylvia[/name] and [name]Summer[/name] for first names.
(Not going for ‘S’ names, just a coincidence!)
[name]Abraham[/name] [name]Michael[/name] and [name]Maria[/name] [name]Josephine[/name] are great names. [name]Sunday[/name] [name]Savannah[/name] is quite a whimsical departure from [name]Abe[/name] and [name]Maria[/name]'s names. [name]Abraham[/name] [name]Michael[/name] and [name]Maria[/name] [name]Josephine[/name] are both timeless, whereas [name]Sunday[/name] [name]Savannah[/name] will likely end up easily pegged to this decade. Personally, I would go with [name]Jane[/name] [name]Savannah[/name] (although you said that [name]Jane[/name] is a middle name option). I feel that [name]Jane[/name] is the best fit stylistically with [name]Abraham[/name] and [name]Maria[/name].
I feel like [name]Sunday[/name] is very modern compared to [name]Abraham[/name] and [name]Maria[/name], which are lovely classic names. They sound nice together, but it does stand out. Although [name]Summer[/name] is also a word name, it doesn’t sound quite as “out-there”. My favourite combo of the names you mentioned is [name]Sylvia[/name] [name]Claire[/name], which goes well with [name]Maria[/name] [name]Josephine[/name].
I agree with some of the other comments and would second the idea of [name]Sylvia[/name], [name]Jane[/name], or [name]Claire[/name] as a girls name that fits better with your sibset. Some other possibilities are:
[name]Abraham[/name]/[name]Abe[/name], [name]Maria[/name], and
I don’t think it goes with [name]Abraham[/name] and [name]Maria[/name], sorry. Then again I never think it’s necessary for siblings’ names to match or go with each other.
Seperately, [name]Savannah[/name] is beautiful. [name]Sunday[/name] is nms, but interesting. [name]Sunny[/name] would be a cute nm. And yeah, [name]Sunday[/name] [name]Rose[/name] is beautiful.