Girl name help

Grace

I always wanted to name a daughter Felicity Fay. This has been my favorite girl name for a long time. My heritage is English/Swedish and my husband is from Spain. So, we want the names to be sort of bicultural/bilingual and we never agree! Our son is Andoni Marc (Basque/Catalan names). My husband likes Felicity bc it’s the name of the Aunt that raised him. But recently, we discovered that we both like the name Vega. This name is very popular is Spain and Sweden but not in the U.S. I’m kind of obsessed with it now. I think Andoni and Vega go well together as siblings but Andoni and Felicity not so much. I did a poll for Vega Felicity vs Felicity Vega and 95% think Felicity Vega is better. I don’t even know if they work together. Also, I want the first name to be the primary name she is called. Thoughts anyone?