And the answer seems to be: you are the designer, congratulations!
I used parts from other people's designs.
I think I've explained it somewhere else, when I made the Serbian one, but not on BTS:
The top view, including panel lines, is traced from a speculative piece of
PAK-FA artwork, from before Sukhoi T-50 went public. Then I adjusted it for a single engine and smaller overall size. Nose side view is traced from a speculative MiG light (or medium?) fighter drawing found at paralay.com, and stretched a bit. ... And then I connected the parts...