I would roll the big ball to the left to balance it a bit more. Also I like Liam's suggestion of making it more deliberate... sometimes more effective that trying to straighten everything.... Here are 2 shots from exactly the same point .. both using shift. One to straighten the lines .. one to exaggerate the perspective.
We often discuss what can be made in photoshop versus perspective control lenses or cameras.
Just for fun, I took the liberty of doing 1 minute photoshop on left image to have it match the right.
Remember this is a very strong perspective adjustment, and you will lose a lot of space (wide angle):
Here it is in overlay mode with the original right image (corrected in camera):