Actually, no. The number of notes is just a list; complexity is something that happens between the notes. A perfume with 20 notes listed can smell flat and simple, while one with only 7–8 notes can be very deep and layered, because those notes blend into each other, change over the hours and leave something new in the dry-down. Also keep in mind that note lists are often padded for marketing, and some of the notes written down are barely noticeable, if at all. Complexity comes from how the perfume is built and how it evolves on you, not from how many things are printed on the box.