Quite a few problems. First the abilities section has many errors with the brackets. I can fix that or you can.
This should just be
High-Low Regeneration
You most likely need calculations for both feats. The Building one could be fine just eyeballing it, but I'm skeptical about that Mountain one. Especially since Mountain level is an arbitrary value.
This would just be Subsonic
There is no reason to scale his Striking Strength to the power he outputs with Gravity Manipulation
Again, you would need to provide proof that someone can attack with power equal to what he outputs with gravity.
Also why do you have a key separation if there's no other information for another key?