Cool to see a specialist, I like old mosaics but neither search for their slyles, mames …
If you want it is also possible to make some rectangles
I used a Voronoi tessellation, then each Voronoi polygon is transformed in rectangle using one of my program to search for maximum inscribed rectangle
The only problem is that the script is awfully long !!!
Updated, faster version, with other version for inscribed rectangle 4 s vs more than 2 minutes.
20190322_mosaic_v4.gh (560.3 KB)
With n=1, cubes are aligned and it is the fastest.
20190322_mosaic_v4.gh (559.9 KB)
Some other Iconic picture from Steve Mc Curry
http://www.technocrazed.com/top-10-iconic-photographs-that-marked-our-modern-history
And a very simplified script
20190322_mosaic_v5.gh (1.5 MB)