So- like the title and description say I'm going to be redesigning some of my Ocs and I want to know what should be changed about their current designs

So far some concerns I personally have are race and names- I created these characters back in 2019 and so I just did what I thought looked good- any name suggestions and the characters their for are welcome!

Negatives:
Nicki- Night

Vix- Death

Kace- Void

Positives:
Phoebe- Day

Mia- Life

Sin- Abyss

Neutrals:
Jay- Universe

Iris- Nature

Any feedback is welcome!!