Veronica - I have a love-hate relationship with this naeme. On one hand, I love it, on the other I find it snooty and cold. Overall, it's lovely.
Vera is a cool nickname, though I prefer the name on its own. NNs -
Ronnie and V are the only ones I think of.
Selma - This I love. It's very pretty, it's weighted, great namesakes. I'd also use it.