This is the good side.
You can see the line of the big roots where the grass doesn't grow. In addition to being rough they make for uneven take offs and landings.
I love the big black pine at the back of my yard. Recently, one of its large branches died and was removed when I had my trees trimmed. It also has a big branch that hangs very low. It's being held up with a rope now. I've decided to have that one taken off, too. Right now I duck under it when I run. It will be even worse with the soil being raised a few inches. Also, although the branch in itself is lovely, with the dead branch removed on the right, it makes the tree look out of balance.
I've decided to have several inches of topsoil added and St. Augustine grass put on top to cover the roots and even out my small agility field. I'll post again when it's finished.