Please add mirrors or reflective surfaces (if mirrors would be too prone to accidents) - good to check exercise form and for adjusting posture based on feedback. Thank you, Uzina CF!
We purposely didn't add mirrors. See here:
http://www.sport.cam.ac.uk/about-us/blog/have-you-ever-noticed-a-mirror-in-front-of-a-weightlifter-at-the-olympics.html