While it’s expedient to auto-trace, unfortunately, such automation tends to get some detailing wrong:
Since this is a symmetrical design, it’s quite quick to re-draw:
- place the image on a background layer and lock it:
- draw in the circles:
- roughly draw in the cross shape:
- fine tune it:
ideally the fine-tuning would be perfectly symmetrical, but the drawing isn’t quite:
Forcing symmetry results in:
We then inset the outer cross as necessary to achieve the balance of the design:
and then combine things as compound paths and Boolean operations to get the desired outlines…