One of the things you'll hear me emphasize over and over (except in ILL2D 346 Animation Assisting !) is to loosen up and draw rough in your first pass animation . Here's an excellent example of a real production scene animated very rough , but very expressively . This is Glen Keane's animation of Fagin and Oliver (the cat) from "Oliver & Co."
And here is the finished version of this scene , which is actually split into two scenes in the movie , with a cutaway inserted to show Fagin's point-of-view looking back over his shoulder at Jenny and Georgette .