Could "Mimiron's Head" or "flying machine" fly in the real world?
Could they fly... ...Maybe 

The second device looks quite a bit like an Auto Gyro which is very much capable of flight. 

The first device looks like (as has been mentioned) the center of gravity would be an issue. If those side pods generated enough thrust along with the main rotor you could get it off the ground however I would think it would be very hard to control.