What can I do to get asymmetry.
The appearance of the eyelids depends on the eyelid height and contour, brow position, and surrounding soft tissue. Difficult to assess based on your photos and I think you need an in person consultation to discuss your goals.
We are all asymmetrical to some degree and your eyes certainly fall within a normal range. If you are wanting to undergo surgical correction it is important that you learn more about the procedures as well as the risks and benefits to decide if it is right for you. See a board certified plastic surgeon for a consultation to learn more.