To me it all looks pretty regular. Nose cone seems the same, pitot tube is there too. Wingtip missile is PL-8, suggesting the old style pylon. Engine could also be AL-31, though with this latest WS10 variant having similar nozzle length to AL-31, it's really too hard to tell. Doesn't seem to be the extra beefy front LG strut present either, so it does look like a regular J-15 to me.