Interesting. If you look at the production credits, they are relying much more heavily on outside, independent, and foreign composers rather than JYP's in-house creators. Definitely gearing the sound to appeal to Western audiences more (maybe even the European market?). Galactika's their title track producer again though (same guys who produced Dalla Dalla), so we'll see if they're good enough to consolidate ITZY's signature sound the same way that Black Eyed Pilseung did for TWICE.

Vocals in Wannabe and Ting Ting Ting sound "familiar" to ITZY style that we know.

I didn't know how to describe other songs but it's like they are on crossroads and each time they decide to take a turn or move to a different direction which brings them different concept and music genre/style.