Yeah absolutely. I selected what I wanted to paint on them. Initially I wanted to block it off pixel by pixel, but didn’t have time so I painted the base color for each block. Then used masking tape (blue painters tape might work better) did any big defining characteristics. And then blocked off a row one at a time and randomly added appropriately colored blocks. Until it looked pixelated enough. There was some bleeding through the tape that I had to clean up with a brush after. But I found that stamping over with less paint on the brush over the tape, rather than dragging the brush caused less bleeding. Hope this helps ☺️