Describing others physical appearance using hurtful terms such as fat, ugly, too short, dwarf, skinny, big nose is a major sin. 

The Messenger pbuh has warned us about using terms that would hurt a person. 

We are all created by the Almighty who decides our features & although we should play our role to maintain the best possible health etc, we are not permitted to use degrading terms when referring to anyone. 

The Almighty loves us all & He Alone knows who is closer to Him in worship

Be tolerant, Be kind to the people around you, No one is having a perfect Life, each one of us is going through a situation. Understanding and empathy would not only make it easy for you but also for those around you. Be nice, Be kind. It's infectious and one day when you really need it, it would come back to you too.
https://www.facebook.com/SuperMuslimah?fref=ts