This is a spread scar. Serial excision of a section with plastics closure may improve the outcome. I recommend the serial approach based on the length of the scar and to achieve the shortest resultant scar.
Laser scar revision can help blend the scar and make it less noticeable. Scar excision can remove the scar and it can be re-sutured. The latter method comes with more risk and the scar can still look very similar to the original method. If you go the laser route, I would recommend you see a dermatologist with advanced training in lasers.