It is very natural, and actually the color is awesome ! It just like my eyes but its circle line have my eyes more clear. I really love it ant will buy again.
I would rate natural a 10/10, however the comfortable ratings would be 8/10 as it feels very comfortable for my right eyes, but a tad scratchy for my left eye which is weird...
really love the spanish series! super natural lookin but it does enhances the eyes with a pop of colour :) 2nd time buying and will definitely buy again!