First up...

IT'S AOI AS MERCURY IT'S HERRRRRRRRR
Let's calm down and go to a Dream Academy student and Background character!

IT'S SORA AND YUUUUUUUUUU ANS NEPTUNE AND URANUSSSSSSSSS *Table flip* I wish I could draw.
Let's calm down into something that I don't think is Aikastu Moon, but oh well  

So pretty!
Ok now let's go into Sailor Aikastu territory!

I'm positive Chibiusa is wearing Ichigo's outfit and Usagi's wearing a darker version of Aoi's.

Ami in a darker Aoi, and Rei in a darker Ran.
Travelling back to Aikastu Moon, we have...

IT'S RAN AS MARSSSSSSSSSSSSS
and now, some random pics I found that aren't even related at all to any of the animes in this mashup.

Ok fine, Pripara is also a Idol anime, but I OBJECT!

I'm confused...