How to run DOTween tweens in succession?

I have a function in my Unity game which marks a given cell GameObject as a valid cell for next move by changing the texture on it. I wanted to spice things up a bit by adding some tweens to the changing cells so I decided to use a simple tween in DOTween - I wanted to rotate the cell 360 degrees in-place while changing the texture when it's facing away from the player (so that the texture doesn't suddenly pop to a different one when it's visible). So I did something like that:

 public void markAsLegal()
 {
     centerPivot.DOLocalRotate(new Vector3(180, 0, 0), .5f, RotateMode.WorldAxisAdd);
     this.GetComponent<Renderer>().material.mainTexture = Resources.Load("textures/legal_hex") as Texture2D;
     centerPivot.DOLocalRotate(new Vector3(180, 0, 0), .5f, RotateMode.WorldAxisAdd);
     isLegal = true;
 }

This, however, doesn't seem to wait for one rotate before starting the next one and so the cells end up in some weird middle ground, slanted. How can I make DOTween/Unity know that I want these commands to be executed in progression, ie. 180 degree rotation ends -> change texture -> finish the remaining 180 degrees?