Greek yogurt mask vs Clay pore mask

So what's the difference between a Greek yogurt mask and a clay pore mask?

This is the Greek yogurt mask.

Clay pore mask

Both masks felt tight after putting on for a few minutes. The picture isn't too clear but, both mask gave me similar results. My pores did feel tighter. However, my skin felt so much brighter after using the yogurt mask. The good thing about Greek yogurt mask is that it's simple and can easily be made at home. The down side is the smell. Clay pore mask smells relatively good and I could use my fingers to apply it. The downside for this mask is that I don't know what ingredients are used to make it. Either way I enjoyed using the masks. I think that sometimes it's good to use a natural mask because I already use many different products everyday and my skin needs a break.