I really like daily life snapshots, candids, photojournalistic documentary type of shots that represent the reality of life. In fact I love to do similar work with new mothers and their infants, but don't often add them to my portfolio, instead they make for a wonderful photo album of special moments that the parents can treasure.
This is a good capture of a sensitive moment between mother and infant, and her nudity represents what a young mother might typically do at the moment if she happened to be unclothed and her baby needed to be changed.
I might prefer the light to be a bit more subdued, but this genre of realistic lifestyle photos is fairly wide, and whatever is real tends to work at the moment. The alternative is to set up such a scenario with the type of lighting and setting, props, whatever you would want it to look like if you had the choice of doing that. Then it almost always comes off as looking posed rather than casual.
This style of photography goes over really well with ordinary people wanting to capture those special moments, but a lot of the studio photographers who are more concerned with making everything look absolutely perfect do not like the genre at all.
You mentioned in your profile that you like to work with the families of soldiers who are deployed elsewhere, and in my opinion these are the perfect clientele for this type of photography, because they really miss the everyday life being so far away from home. Casual lifestyle shots like this one are just great to remind them of what daily life at home is like and they are sure to treasure them!