I've always been a big fan of this Art Style - those of the S era are stunning!
Unfortunately, this artist never worked on the series itself.
https://flic.kr/p/2pRHBbv
One of my all times favorite illustration of the 3 Outers; everyone looks stunning here!
https://flic.kr/p/2pRJM53
Chibi-Usa looking slightly older gives off a completely different vibe!
https://flic.kr/p/2pRBSfj
Actually all of these 3 illustrations were used in a French anime magazine that I bought in 2006 to introduce the S season.
It mentioned Chibi-Usa coming back from the future to aid the girls so I always thought that she would have been slightly aged up becoming a Senshi herself.
https://flic.kr/p/2pRHFzv
This one looks straight out of a shoujo manga!
https://flic.kr/p/2pRGvVR