I dunno if it's trend fashion but she used to have her "iconic" Ayu poses & stuff. the eye pop etc, well just A BEST era, when they started talking about posing like Ayu etc. and they were kinda okay,good,beautiful.but now she seems to do much effort for posing?? and the results are mixed.
she did have her style.till 2000 she was like usual girl-next-door.kinda boring & plain. then the leopard & red plaid check & nails pre-Duty & Duty release lifted her up in terms of style. TU-KA & KOSE collabs must have done it too. in 2001 undoubtedly - Ayu style - the hair, make-up, nails & side fur ponytails kaBOOM
in 2002-2003 the crazy Ayu style era, like having 10 different hairstyles in 2002, Free & Easy URAAYU etc. the famous nails, bandannas, neutral make-up & tan, natural, sports casual wear as she had it. don't forget cowboy, hippie style.jeans jeans jeans everywhere.
then RAINBOW & A BALLADS - more gentle & feminine yet sometimes casual too. such a teen-pop style.
in MY STORY going all mature & having the heavy doll make-up and using much of pink lipstick as never before and lotsa blush. it was still okay, she was casual like jeans & top but all with the big bling & kira kira, bracelets etc.
but then I started to dislike the look. because there was too much dolly, pink, kira kira, high brands. it made her look older,huh.
I really disliked it. in terms of style I think Kuu matured better in style, sorry.
during Secret era I liked it sometimes. these simple black-white dresses,plain. and some little diamonds in accessory here & there. quite good.