I cut Barack and Michelle Obama at the wedding (this or this), using photo2cnccut, on 100x100 mm aluminum plate.
I wanted to try a more difficult subject, and I think it turned out relatively fine.
I can recognize features of those small (and beautiful) faces.
The large black and white areas are not so unintelligible as I had thought. (the depth-adjustment on machine was a bit hard, though).
For painting and finishing, there is room for improvement. I'm not yet certain which is the best (re-cutting, sanding or polishing? mat white or mirror finish?).