Both dog are cute.
You should pick the dog that you like the most. I do not think it is wise for any of us at Yorkie Talk to tell you which dog to pick, because deciding on which dog to adopting is a personal choice. If you are more attracted to the new dog more than Lola then get her instead. Pick a dog that has the looks and personality that you desire. You want to feel joy and not regret after adopting a new dog. Maybe you should list all the things that you like about each dog to help you decide which dog to adopt. Then pick the dog with the traits that you like best. If you are not sure which dog to adopt, then I would wait until I find a dog that I know for sure that I like (100%). The new dog looks just like how my Yorkie looked like at that age. Good Luck!