I used different layers to incorporate each face. I am quite happy with the result. The only donut I would change would be the powdered white one on the top right. It seems like it was pasted on more than the other ones. I like the farthest top right and left donuts the most because they seem to have very weird emotions.
I was thinking of using another picture of the donuts (such as an angled photo of the donuts with more of the box) but my camera kept focusing on things I did not want. I tried changing the focusing, but it did not work well. In angled photos, the front donuts were unfocused. instead, the camera sharpened the back donuts.