One common mistake that is made. When there is this much damage and a repair has to be done, many times body men glaze coat the entire panel. This is easily apparent when looking at pictures. This gives a excessive and unnecessary build of bondo. It takes practice but keep this in mind. Less is better. The projects longevity is at stake here, also get it right before you primer. To much build of any material can cost the longevity of the project.