First I projected the images up on to the wall, then I lightly drew the image directly on the wall with pencil.
Using the pencil guides, I Painted the yellow and red sections. Next I masked the black sections with masking tape and painted them. Finally I used FabLabs vinylcutter to cut all 4367 dots (1,4 cm in diameter) and, one by one, placed them in place.
The final step was using a scalpel to cut the edges of the dots the overlapped the paint.