https://blog.jibo.com/2015/08/05/jibo-and-the-12-principles-of-animation To become a great animator, whether in Stop motion Animation or 2D, 3D, CGI and any combination of these, you must start with the basics. The basics are the 12 Principles of Animation.
Or read some of the fantastic resources here: http://minyos.its.rmit.edu.au/aim/a_notes/anim_principles.html http://blog.digitaltutors.com/understanding-12-principles-animation/ https://www.wired.com/2014/05/12-principles-of-animation/ https://quizlet.com/36982121/3d-twelve-principles-of-animation-flash-cards/