Great to see all of the community input on different approaches for the modeling operations. @abronee Have to agree with @ZacD: The primary issue here is figuring out the basic shapes that the designer used to generate the overall form. Gathering some additional references [Turn around images.] should make it easier to see…
@rogi92 Manually extruding and filling polygon strips can be a viable modeling strategy but some of the shapes in that mask could make it a tedious and time consuming process. Since you already have a solid start to outlining the shapes: consider streamlining this modeling strategy by using Blender's curve system to layout…