I took 30 (yes, 30!) photos of the kids on this swing today trying to get a good picture ... and this is the best one. Seriously. Keira kept making goofy faces and Nick refused to smile. In the one or two that he did smile, Keira was making an even goofier face.
Also I played in manual mode on my camera while at the park. This was taken at:
ISO 400; 1/125; f/5.0
The only adjustment I did on the computer was to adjust the contrast a little and a little cropping.
Not great, but still not bad. I have a lot to learn!