I'm calling this style “Relief Topography”

Start with dark/black and each change move lighter. 5 colors/ 4 changes total.

Link to the complete Collection: https://www.printables.com/social/336804-triple-g-workshop/collections/345687

Quick Guide to changing filament~

1. Have some paper to push away extruded filament. That's why I always set up the models on the left.
2. When the MK3 jogs after a change it will spit out another inch, so I follow it with paper until it starts to move back down. Doing this has given great, repeatable results.
3. Use a tool like this to help changes→ https://www.printables.com/model/329171-filament-change-tool
4. Have fun!