I love [name]Sebastian[/name] and [name]Theodore[/name] together. They just look like โnaturalโ brothers in every way. [name]Theodore[/name] [name]Winston[/name] is very distinguised but [name]Sebastian[/name] [name]Blake[/name] is heavy on the bโs.
[name]Lucia[/name] and [name]Pearl[/name] are great names too! The only issue is that [name]Pearl[/name] is only one syllable compared to the other possible siblings. [name]Lucia[/name] [name]Charlotte[/name] has a lot of โsโ sound so itโs kind of lispy together. As long as the first names flow well with their future surname, I donโt think any of these issues are deal-breakers.
I think they fit quite nice together. The only thing that I would change is the [name]Pearl[/name] combination to [name]Genevieve[/name] [name]Pearl[/name].
[name]Sebastian[/name], [name]Theodore[/name] and [name]Lucia[/name] all fit together perfectly, but [name]Pearl[/name] seems a bit mismatched to me. Maybe because sheโs only one syllable and the rest are at least three, she strikes a bit bland in comparison.