That can happen to Anyone who ever tried to draw - & those of you who Have Your Artbooks obviously Know That Feeling! ( - Especially when you're trying to draw a new thing for the First Time! ) 

*That happens to me Many Times while drawing a new Troll picture before I finish it & add it to my works... - That's why I click 'Save' every few seconds to come back to the 'good version' & try again if necessary... - I'm trying again till it looks 'ok'... - I'm not giving up & I just keep drawing... - & you can see the results in My Artbook! 😁👍

( - I'm glad that I started it cause it got Appreciated here: So Getting All Those Nice Comments was Worth the Effort - I'm also telling you about describing the 'Stages of drawing' of every single drawing! :) )