Are [name_f]Annika[/name_f] and [name_u]Nicola[/name_u] too close for sisters? We love both names and would like to use both, but not if it would be too confusing.
No, as far as “dumbing them down” it’d be [name_f]Anna[/name_f] and [name_f]Nicole[/name_f], those are vastly different names. I actually think they sound like a great sibset!! They have a few same sounds but I like it! I’m a fan of alliteration, there’s a reason people like it in poetry, it’s pleasing to the ear!
No I don’t think they are too close for sisters. They are both very pretty choices!
I think they go great together for sister’s. [name_m]Even[/name_m] though they both end it -a, they sound different and unique 
I think they go well with each other.
They’re too close