I'm weary of saying there is anything "wrong" with it. Some people have taken this the wrong way recently. It is a perfectly nice snapshot type photo.
I can tell you what I think could have been done better.
You have a dead center composition, although there are situation where that works, this is not one of them. It's a common pitfall of new photographers to have everything dead center. I would suggest you learn about the "rule of thirds" as guide (not law) for better composition.
It would help to fill the frame more. Get in much closer, try to eliminate unnecessary detail that has little to do with your subject. I would have opted to have the feet of the children out of the frame same with allot of the pots.
Try to get on the same level as your subject. Seems like you are shooting from higher up.
I don't know if you have a SLR or not, but try to shoot with a wider aperture (small f numbers) to blur the background a little more and isolate your subject, unless you are trying to have the flowers as part of the composition.