I love it - a family vacation snapshot instead of "artwork". I mean this in the best possible way, you've captured a moment in time and place as it occurred and added nothing to it. Most of our history in photographs are snapshots just like this; I sometimes need to remember that myself.
It scares me how big you kids are getting
Composition of the image is great, as we can clearly see parliament house as where you guys are.
In terms of the family positions, I would swap Michael and Arijana (sorry, my spelling is probably wrong). Michael at the moment is too much in front of Michelle.\But its not always easy getting 8 in the photo.
Glad you got good weather in Canberra. Every time I go there it rains.