Try it the way I marked that one picture. It's hart to tell where TDC is without the rod and piston. If you had your rod and piston in, and turn the crank counterclockwise the intake valve should start opening as the piston starts to move down.When the piston comes back up, both valves should be closed at TDC. Turn more and when the piston starts the next up stroke the exhaust valve will start to open.