What is a better way to shade and add a 3d look to a drawing?

Choose one piece of art from the unit. identify at least three elements or principles of art in this piece of artwork. discuss each element or principle and how it is used in the piece.

What made this representation of the virgin mary revolutionary

Ineed this to be answered fast and you i would appreciate it1. what benefits are there to using an online filter app? 2. of the apps you researched, which would you choose to edit your own photos? why would you choose this app over the other ones? 3. if you could choose between using the camera accessory filters that connect to your camera or the photo editing app filters, which would you choose and why?