I recommend providing several photos, taken by several different photographers, when you land. I knew that the photo attached to the COPR by the embassy might not be accepted by those responsible for producing the PR card (a ridiculous uncertainty to impose on immigrants, in my opinion), so I gave them several choices. Why have to wait months for the letter of refusal? If CIC dislikes the embassy-approved photo, just fish in the bag for a different one and surely find a satisfactory one.
As it turned out, the photo attached by the embassy was acceptable for the PR card, so I cannot say for sure that the PR card people would have fished in the bag for other photos -- but it can't hurt to give them more choices in case they are tempted that day to be reasonable, right?
Has anyone tried this and found that the PR card was issued with a different photo than the one attached by the embassy? If so, then this would be a strategy to be recommended strongly.
Hope for the best, but plan for the worst.