Kader, Smile and Lili Ledy each produced unique skirts for Squid Head. There’s micro variations in the materials from each factories, but for this broad guide I’ll just focus on the main variations.
Kader: Fluffy fabric, shorter length, pleats around the waist.
Smile: Ribbed fabric, longer in length, pleated around the waist.
MIM: Ribbed fabric, longer cut, elasticated waist without any pleats.
Lili Ledy: Not as fluffy as Kader (and ribbed if worn like my example), shorter in length, elasticated waist and also without pleats.
A minor caveat is that the Kader & Smile skirts do slightly vary in length, but the pictures below are the most common versions to be found.