I agree many gals are inspired by Kuu. back in her top-time, in 2006, when Kuu was everywhere, there were so many looks inspired by her. remember during Koi no Tsubomi she wore her hair in a bun a lot of time and coloured a certain way? I have seen scans of that time with many tutorials for this hair. also, and a top and long skirt. and many more. really
I think Kuu make-up is typical mature gyaru (onee-gal), just without circle lens. here's a scan of just new Happie nuts and my all-time fav model Yui Minemura make-up

I think it looks very Kuu. natural type. not to mention smoky eye & dark eyemake