Ring with a skull

Regarding the technical assignment:

1. Please tell me if it is possible to somehow copy the bones from the file (the file was created online using AI) or redraw them so that they look the same as in this file, and then add them to the ring?

2. The bottom part of the bones should be located at the edge of the ring.

3. The teeth should be drawn completely.

4. Draw the teeth more carefully.

5. Age the ring - small "notches" on the ring, but not on the skull.

Thank you!