Left side looks pretty good. You might need to take a sledge to the tight side and bend that bracket down. It's hanging wayyyy too low. When I installed mine, I had to use about 3-4 washers and did some pulling but it looked good eventually.
Sorry I couldn't be of more help. You might have to take it to the dreaded muffler shop.
Edit: Looked at it again, you may just have to do some pushing to slowly bend the bracket. Again, I had to tug on mine (no pun intended) to get it straight and from touching the bumper.