Hand-drawn with a marker, vectorized afterwards. It's about 1m by 1m30. Started in the center and symmetrically worked outwards. Here's the progression:

The main objective was to fill the canvas without overpowering any area with too much white or too much black. I always kept contrast in mind, and tried to stay within certain limits. In general, more black areas are surrounded by more white areas to balance it out.

The result is a canvas that's balanced in contrast and symmetrical from the center out.
The large size and the great amount of detail makes this a piece you can keep looking at:
I've made others in the same style. Here's another progression:
Murala
1
25
0
Published:

Murala

A hand-drawn design made in a span of a couple weeks. Every day a bit more, starting from the center.
1
25
0
Published:

Creative Fields