I think it's very pretty. I slightly prefer the k to the c but it's not much of a preference.
Karen was already so dated when the meme got popular that it doesn't even factor into my equations. If I had to compare Carina/Karina to a name, it would be Katrina, which is already a bit dated but which I like a lot. Someone who had been personally affected by Hurricane Katrina might hesitate to use the name but Karina might please them.
Before you criticize a man, walk a mile in his shoes. That way, when you criticize him, you're a mile away and you have his shoes!
Steve Martin