The Lily is undoubtedly one of the preferred flowers attempted by origami artists. It works well as a home decor item. The lilies are also a great accessory to decorate gift bags with. When making the design to be used as a decorative item, it is recommended to use a fancier paper like fabric textured origami paper or Washi origami paper to make the final product more alluring.
It's not a difficult structure to fold, however, if it is your first attempt at this design, then some areas might seem a tad bit complicated. Be patient with the fold and take every step slowly and carefully.
Here is a link of origami lily that you can refer to:-