The airframe
I selected NACA 0013 and 0015 aerofoils, sized the wing area against the lift requirement, and designed the PLA airframe around 3D-printing constraints: part size, print orientation and how the sections join.
[Add specs if you have them: span, mass, battery, motor, intended endurance.]
What I'd do next
[Flight testing, or the next airframe iteration, in one or two lines.]