It seems to be the mom-mom and grandpop kind of event where a lot of people have collected and they are celebrating some event out to. I want to say Easter for some reason. It's always It's dark outside. You can see from the window. So it's probably nighttime. I don't see any major lights. It seems like this was a planned photo where the only light source is the floodlight used by the camera. That might be wrong there.