Mazel tov Liora! May you build a bayes neeman b’yisroel
There is absolutely nothing at all to worry about. From all the couples mentioned in tanach, can one place be found that ‘looking alike” was any sort of criteria? Not at all
When girls and ladies gush over the fact that choson and kallah have similar left pinkies, its just cute stuff. Similar as if his tie matches with her shoes. If it happens, its ‘cute”. Thats about it
Mazal tov