Kvara came off the bench to score twice as PSG won the round 16 first-leg 5-2 at the Parc des Princes.
The Georgia star said afterwards: “It was a great game, we tried to play until the very end and we did a great job. Beating Chelsea by three goals is important with the next game coming up.
"We’re focused now, nothing is finished and we have to continue like that. Tonight we’re happy, but from tomorrow we have to concentrate on the next game.
"Collectively, I think we did a great job. At 3-2, and 4-2, we wanted to score more goals. We worked from defence to attack and I’m personally really happy that I managed to help the team. We have to continue like that now.
“I’m really happy. I have to work hard as there are a lot of games ahead and we’ll be focusing on that.”
Named man-of-the-match, Kvara added: “It’s difficult because we know that anything is possible in football. We just have to stay concentrated for the next game, prepare ourselves 100% and try to win over there too. Let’s see what happens.”