I'm creating a ply layup sketch for a composite panel. I created one sketch on top of a sketch picture of the panel (.png of the OEM drawing) to match the existing edges and map damage to be repaired. Then created a second sketch with the ply layup from this. From this I created a drawing to change the line color of each plies edge for clarity, but in the drawing the sketch picture is in front of the ply sketch so it doesn't show. How do I bring my sketch forward so I can have the colored ply sketch on top of the sketch picture it was created from?