Going by the details that the figures in Aerith's Mural in her old room at Shinra Building wear outfits that matches the garb seen in Shinra's VR Movie about the Cetra, and we know via Picturing the Past that
some of the artwork was done by both Ifalna
and Aerith while going over the History of the Cetra... I think its safe to assume that what Ifalna and Aerith are wearing are just clothes that Fuzz managed to scrounge up and give her... though you
could argue that the
jewelry is traditional Cetran.
Comparison for fun:
That being said, you could
maybe say that while it was just clothing Fuzz managed to find, he
was influenced by the general
look of the Cetra when making his choices.
Also, something from the Japanese version of Crisis Core: Hollander was under the impression that
Hojo wouldn't know about where Jenova was kept
either, with the Q/A saying that Shinra basically lied to Hollander about this.
[Hollander] だがジェノバ細胞は 保管場所が分からない 宝条でさえ知らないんだ 見つかりっこない!!
[Hollander] But I don't even know where the Jenova Cells are stored. I don't even think Hojo knows, but I don't know where he is!!
(The retranslation was done through a more knowledgeable friend of mine)
Reading between the lines, it seems that during the Jenova Project
proper, neither Hojo nor Hollander were told where Jenova
herself was, only given samples of her cells to work with. After Hojo beat out Hollander in becoming R&D's new Division Chief, Shinra
then told Hojo where Jenova was... which presumably earned the mad scientist quite the cackle.