Toning On 1967 Sudan Proof Set -- Your Opinions?

These are all seller photos. Waiting to receive in hand to take my own photos which will be much better in quality. I'm usually not a toner collector, but paid $53 for this set.

The higher denominations (top row) are all copper-nickel while the bottom row are all bronze. These are proof coins that are normally sold in sets of 8.

While toned copper-nickel tends to be rare, it seems like the colors here are plausible. Let's see what you think from these seller pics. I will update when I take my own photos in hand.