Thoughts on name picks?

For a boy I love the name Levi. However, my last name and first child’s last name is Sparks. Is this too close to Strauss? My husband has a different last name and it works perfectly well with Levi. But is it weird to have full siblings with two completely different last names?

For a girl I’ve always loved the idea of naming her after my great grandmother who was an absolute renegade and all around badass. Her name was Venora. I never realized this name was made up until recently. I always just thought it was uncommon. But I’m worried about doing too unique of a name and having her be teased for it. Thoughts?