Both names are gorgeous and I love that you're using traditional spellings. Having said that, the combo has a repetitive three/three rhythm with the stress on the second syllable. That by itself isn't that bad since my favorite
Naomi combo also has a three/three rhythm (
Naomi Christina after my bff who passed away). Back to your combo, each name also contains three very open vowels and together, it's a bit much for me. Still,
Shoshannah would be a mn that wouldn't be pronounced as often.
Overall, it's lovely.