Mike, It's not perfectly clear in your photo... but, it looks like the top grounded conductor is not in the same set-screw as the grounding(ground) counductors-- which would make that set up ok.

The grounding (ground) conductors CAN have multiple conductors under teh same set screw but there should-not be grounded conductors (think neutrals) with multi-conductors under the same set-screw. Nor should there be both a grounding and grounded conductor under the same set screw at that bar.

Clear as mud??