You can create a 3D sketch from a plan by setting the angle to another plane, create the arc of a circle, and add fillets.
You can create two sketches on planes and with the projected curve tool create the 3D sketch of this fold. All that remains is to add leave and even then, it depends on your sketches.
The simplest is the first solution but requires several scans.
The second one is cleaner, 3 2D sketches converted into 1 3D sketch and a single scan. A solution that requires a little more knowledge.
First of all, I hope you that to simplify you work on half of the piece, to then make a body symmetry with fusion.
I'd also start with a 3D sketch: - the great arch being constrained in inclination via a construction line, the center and one end being constrained on the median plane; - Leaves are created via the Sketch Leaves tool.
I just made a piece of workpiece: SW14 doesn't know how to make the fillet between the inclined arc and the inclined segment, so you have to be cunning.
