I have already watched the light one before and like it very much, but I cannot make up my mind. From the videos you posted, watching the first one with all the swatches, I would go for the "fair", but seeing it applied in the second video, it appears very pale / white, whereas the light one might really be too dark for me (I think the "light" video person would need a lighter shade in the foundation, it seems a little too obvious she wears a foundation and the point is, in my opnion, that you can't notice a person wearing a foundation when she chose the right shade.)