Hard call from these pictures, but I would say either a Fulcrum-C or a Fulcrum-S. As for the canarded version, that is completely made up, as the canards are the same as on the SV-51. Some time ago there was a proposed Mig-29 variant with a fuselage plug to add about a meter or two in length , Thrust Vectoring Engines, and canards. That design was never pursued though. The canard positioning on the later MiG-29 really isn't that good and would really hinder performance more then enhance it, the angles are horrid and the positioning would not allow for any controllability, really they would be drag magnets.