The balaclava is made in two parts; the first part is the hood, and the second is the collar.
The parts are joined using slip stitches.
The pattern is customizable, so you can choose a completely different granny square, more or less classic, that you like and then repeat the same pattern around it, according to these instructions.
About designer: Marta Raljevic is a crochet designer based in Zagreb (Croatia). Check more of her work on her Instagram.