Looks like Sayori has changed her style a bit... idk, it's like their faces are more round, and the colours are less bright and artificial (and it has nothing to do with the scan). Their drawings look more "soft".
I like it, it's a great improvement.

I agree with you on the 'soft' part I suppose but her art looks the same to me. She's now one of my fave. artist. The legs are just stunning.