Annie, you are bringing up some real “shadow challenges” and that might mean a possible class in the future, but in the meantime, here are some pointers:
– shadows are how light is blocked by something of different opacity and in the case of an organza ribbon, it is not opaque to start with, so it would not stop the light much = very faint shadow. In that case, you might want to make that shadow with a very low opacity and a very high blur at the same time.
– 3D shadows are completely different than “regular” shadows as the regular ones assume that the element is flat on the surface behind it while the 3D shadow assumes that the element is typically standing up on a horizontal surface, and require manual addition of the shadow.
If you have other “shadow challenges”, let me know so I could add that to a future class!