My 50mm lense already gives me a little bit of zoom while talking a picture, I also did crop the picture afterward... But to be honest this corner is so crowded it's not surprising at all that they didn't noticed me...
This is a good example of just how shallow a DOF 1.4 gives you. I assume you focused on the front woman. The woman only an inch or two behind her is slightly blurred. But her hand is the same distance as the closer woman so it's in focus.