Thanks to Instagram again for the idea for my new tutorial. This time it's from Lottie Files page(@lottie.files). I found similar animation on their page and considered it as something interesting for making in After Effects.
After Effects Template: http://easyaftereffects.net/isometric...

Website: http://easyaftereffects.net
Instagram: @ilya.dynkin
Gmail: [email protected]
Facebook:   / easyaftereffects  

0:00 - Preview
0:12 - Add a new square layer and apply mask on it
0:35 - Use "Stroke" to create outline
1:09 - By duplicating the layer, build a 3D cube
2:57 - Animate rotation of the cube
5:14 - Stroke width doesn't depend on scale of the cube
6:17 - Add more cubes to сomplete your composition
8:26 - Result

Music:
Drop - Anno Domini Beats
Lifelong - Anno Domini Beats
Like That - Anno Domini Beats