I don't know what to say but the more I look into this aircraft the elements from F-35 I find on it. One can't simply just copy others' designs. You must come up with your own way of doing things.Since when is the no. 2031 powered by WS-15 engines and even more since when do we have a clear image of the WS-15-powered prototype? IMO all we have so far is what I put together in the J-20 thread on a collage and none of the images is clear or even conclusive to say it is a WS-15.
By the way since it is a nice CG (does anyone have the full size one?):
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