Chinese Stealth Tech- many think China borrowed fighter technology. I also think it would be foolish not to use proven ideas. Plus if your designs can be taken the only main advantages are strategy and training. This where the majors have the edge.
I particularly like the way this poster goes from the inspiration for the design at the top down to the final renders at the bottom of the page. It also shows both the front and the back of the concept, which is something I would like to do on my poster.