So I'm not sure if I've gotten it quite right, but I think I've mostly figured out the granny square Helia made? Mine don't look as crisp, but it gets the general idea. I think these are going to become a scarf or something; I have to get some yarn in the right colors before I make anything more ambitious.
You figured it out well (only added an extra row).
As Auleliel wrote, it will be more square after blocking, and/or if you put them together.
But I feel totally ashamed, because I actually draw a little chart for you, but forgot post it. Sorry...
A bit late, but here it is: