Ok, 600 x 8 x 3 mm to the outside,
The tricky bits,
Working backwards down the timeline, all the panels were combined to one globe.
The globe is divided into 6 panels, better chance of compound bending, (over a 4 panel effort,) and your flower seemed to work better for 6 panels
These panels were built with 1/4 being mirrored twice.
The flanges are unfolded, move to the solid modelling area to cut extrude etc, when done refold in Sheetmetal.
The temporary body is made by a trimmed ellipse, 15 degrees off horizontal, extruded thin wall at 8mm and nominal thickness, (only needed to make an emboss outline, for dxf and extrude cut the waste off the flange. Split Body to trim the folding portions off it.
Save Sketch 4 as dxf and edit / trim the unwanted sections.
Cut 12 off front and backs
Step up the timeline, ask questions.
Might help....