Nature Quadcopter Drone Frame (Generative Design)

Drone model as nature would design it. After the topology optimization used other software for little details. For this model the best way to attach the electronics and battery to chassis will be a kind of rope or if the users will want a specific way to link the electronics I can prepare a 3D model special for that requisition.
I think that with a little bit of feedback I can make the model almost perfect.
-- For ABS Material the actual mass is 14.645 g
***ACCORDING TO THE STRESS ANALYSIS***