The route map you see on the train.
If you look carefully, it looks like modern art!
I tried to recreate that as an art nail ☆

<Steps>
1. Apply clear base.
2. Paint white.
3. Draw a thick line in yellow, blue and gray, and a thin line in green.
4. Draw a square in orange.
5. Draw a white circle where the line intersects, and outline it in gray. Write the initial M in the orange square.
6. Complete with top gel.

produced by Nail Quick
https://www.nailquick.co.jp/