The first shot has a nice "look" at the boy, with his sister rendered out of focus in the foreground. I like the lens and the way it renders the scene; MANY people from western countries, like the USA, have a very negative visceral reaction when they encounter OOF foreground objects in photos; in Asia, that effect is looked upon much more-favorably. it's one of those odd cultural differences that people involved in sociology and the field of visual perception have taken note of. What lens is that? WHat f/stop?
The second shot looks like wayyyyy too much highlight rescue was needed to bring the highlights back to where they are...the processing looks bad on that shot. The first shot was all in shade, so the exposure was good, and the image looks rich, and clear. This shot looks like the clarity slider is down, and it looks like blur has been added. Not good.
#3, boy in among the framing...AMAZING ability for a digital to hold no-flash detail in the kid AND to hold the bare lightbulb where it was at! A few years ago, this shot would have been impossible to do. Not a really good photo... I dunno...shooting shots like this, I have found that it takes very careful attention to fundamentals....the light level is so low in evening shade like this...it's just...very challenging unless the people are all at about the same distance, and the shutter speeds are slowish, and the depth of field is kind of skimpy, so the ISO's need to be wayyyy up there...and the light is somewhat low in contrast--unless there's a light source, anywhere in the frame, and then THAT becomes an issue...
These types of social photography situations are the kinds that an experienced photojournalist, documentary photographer, or wedding photographer can shoot, and can "work", and can produce some decent pictures in. For the rest of people, these kinds of scenarios are where FAST prime lenses and top-grade gear really help, but even with that, it takes practice and skill to get good "Pictures". This time of night, white balance is a big issue too. Focus is critical also. It's very challenging to shoot these kinds of pictures, and to create anything "decent".