I don't think that it's too "out there" at all.
Amara is a lovely name. I love one of the meanings ("unfading"), but the other possible meaning ("bitter") isn't so good. I prefer
Sofia over
Cerys, but I'm not really a fan of combos with double 'a' endings. Since
Cerys is nms, I prefer
Amara Sofia. How about
Amara Sophie? The combo means "unfading wisdom".