First of all , the pucker dent in the middle was caused by the impact in the front. If you some how reverse the impact in the front, the pucker dent in the middle will try to relax and stretch back to its original contour.
I agree with Geo55. I went to a two year trade school for autobody and was taught to try to reverse the sequence of damage.
There are many ways to accomplish this as our fellow ‘bolters have noted, but if it was me, I would leave the fender on and use your porta-power to push on the deepest part of the dent up front. Use a contoured 2x4 (match the fender) to soften the push. As you push, massage the rim of the dents with a hammer (light taps). Also massage the side dent in the process. During this process of pushing, you may have to jump from one place to another as the dents decrease. I would remove headlight bucket to gain better access (as bartamos suggested).
Good luck and post your results!
