My homemade nail polish!

Hello world, how are you?
Once I was in my uni, I saw a girl with gray nails. I was staring at them until I asked her what nail polish it was. As I was expecting, it was Essie. And after googling it, I think this one:

Essie Gray

I tried to buy it, but I went to Hondos Center and couldn't find it. All the similar colours were not affordable (I don't like to pay a lot for a nail polish) and the affordable ones had glitter in it or they were too shiny. So, I decided to create the colour myself. And I loved the result!
All the things I used were already in my house:

• White nail polish
• Black nail polish
• Nail polish remover
• Empty bottle

First of all, I cleaned a half-empty bottle of nail polish by putting in it the remover and shaking it. I have to admit, it was kind of difficult. After cleaning it, I put inside again remover (just a little) and then added the white and black polishes. I mixed them, trying to create the right colour. And this is what I made:

I really loved it. This is how it looks on the nail after two coats. (inside light without flash)

Now, after two days, it's not that gray, it's a little darker, something between dark blue-green and gray. It's still amazing.
How is your day?
What do you think about it lovelies?
Have you ever mixed nail polishes to create your own colour?
Lots of kisses!