I think the shape of the turret should be more closer to the T-10/IS series of tanks rather than the T-54/55 in WS111
Im not quite sure about that to be honest, from the way i see it it looks like an enlarged version of the T-54/55 turret in the 113 Heavy tank (the wz-111 is a different tank with a pike-nose like the IS/T-10 series)
113 Heavy Tank
WZ-111 Model 1-4
Edit: moved the 113 heavy tank to never built designs