My winner

@rosama: Cosmic man
https://steemit.com/colortheline4/@rosama/visualization-challenge-a-little-joy-for-the-season

And runner Up
@opheliafu: Abstract color splash
https://steemit.com/colortheline4/@opheliafu/my-splash-of-colour-for-kalemandra-s-visualization-challenge

Congratulations to @sukhasanasister: Flowers, tree photos and star signs drawn by children:
https://steemit.com/colortheline4/@sukhasanasister/my-bid-for-the-redecoration-of-kalvin-station-on-line-4

It's going to be tough having the children paint the ceiling
I love the runes on the first floor on the way down

Thank You @kalemandra for the contest and the good ideas I got while doing it, plus I did dust off my 3D skills a bit :) now I know I can make the whole subway and 3D map it :) tell me if there is anyone interested, I'm not a good artist tho, so it's better for other people to paint the walls, I just projected images