Hi im new to Bonsai i started to grow my bonsai on 22/11/2017. after 3 weeks he was in that size as that photo. then it fell on the floor and the soil broke exept where the bottom of the bonsai (i guess its because of the roots that were holding the soil) a month pass and it still in the same size but green and standing is it alive? and if yes is it normal?

This is not a bonsai. It is a seedling, probably a pine. As it is winter it does not grow. Bur in summer it should have grown a lot biggen then the current size.