Afghan Coat Design

I have seen a number of coats that have been crocheted, some with Granny Squares, others with a combination of both Granny Squares and Afghan Designs, and I’m leaning towards the latter. The design I have in mind is for something that comes down to the knees and is nice and colourful.
One square I have in mind is a wonky square;

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It’s about 14cm in diameter, I’ve edged it in pink as that may be the base colour, if all the squares are edged in the same colour it will make the sewing in disappear.

The large square I intend to put on the back panel is still in the drawing stage (not mine).

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I also like a couple of these, perhaps on the front,

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It’s still swirling around in my mind, may change, we’ll see, keep checking!