Blanket of Friendship

I’ve nearly finished putting together my Bushfire Blankets of Friendship blanket. I’ve got only one square left to crochet around, then three rows of squares to attach to each other and then to the rest of the blanket. Here’s a pic of the arrangement I thought I might use:

Before:

Before:

But that’s changed a little as I tweaked and changed my mind:

Almost done:

Almost done:

And I realised that one of the squares was knit horizontally, while the rest are all diagonal. So I knit a diagonal square to substitute:

Extra square

Extra square

Once all the squares are together I’ll crochet a border around the whole thing. But I need to look up the ideal size for these blankets, and if it’s a little small I can just add more rows around the outside.