I've been watching the parts of the V4Mirai debuts I missed and I have to say while all of them seem really talented Dr. Nova is the clear standout. She even went as far as creating a walking simulator to showcase all her likes/dislikes. Her artist is the same as Selen/Elira's but without the large assets he gave them and a turtleneck shirt to hide her giraffe neck.
I posted about one moment in particular that stood out to me in the live thread but since you couldn't rewind their streams while live I couldn't get a screenshot for a good comparison. She drew a scene from a old game that she couldn't remember the name of but her ability to accurately draw the scene from memory was pretty crazy. The games came out in 05-06 and she's a hag so she probably played them 15+ years ago. The game is called
Hapland and is an old point and click flash game series.
Her Drawing
In-game screenshot from steam store page
Timestamped link from stream where she talks about it.
I apparently like purple haired vtubers in labcoats.