They go really well together, a modern boho name followed by a classic well established name followed by a short classic name. Here are my options on the names individually:
[name_u]Sawyer[/name_u] and [name_u]Harlow[/name_u] are just not my style but that’s not to stop to from using them.
[name_f]Emily[/name_f] is absolutely beautiful. So classic and understated. [name_f]Lydia[/name_f] gives me mysterious vibes but that is because of an evil character called [name_f]Lydia[/name_f] in a movie I’ve seen. I’m sure not everyone has that association.
[name_f]Jane[/name_f] is another name that is understated. It can suit any person and feels elegant without being over the top. [name_f]Nell[/name_f] is also lovely, I love [name_f]Nellie[/name_f] and agree that [name_f]Nell[/name_f] flows better with this combo. And maintains the syllable pattern.