Original Layout
Original Layouts are the pencil sketches that layout the cut in deference to the storyboard they are a reference for both the key animator and the BG artist. There are two roles that will work on Original Layouts, it could be the Key Animator of the cut or it could be an actual Layout Artist, for some of the bigger productions studios will hire an artist that specifically specializes in Layouts it doesn't happen a lot, but sometimes it does. Original layouts you will find come with BGs and sketches.