I made 'Noach & Zijn Familie' for the same magazine, once again choosing the four-strip full page format. The main character was a modern day Noah, who had a small caravan instead of an ark, and the family vacations. No auto-biographic elements in that one, mind you, we didn't have a caravan.
With later strips I published, I always had the size of the magazine they were for to take into account, so they mainly stayed the same four-strip (A4) size.
But now with the web, there is suddenly a lot of freedom where the size (and a lot of other things, of course) is concerned! You can do anything you want really, size-wise!
As you can see in this week's comic strip, I am exploring that particular topic: