With the HPX170 or the HVX200 I would shoot in 720p mode unless I was matching other camera at 1080p, these chips are 720p chips. Also never use gain unless you obsolutely have too. Bring the lights in closer before going to 6dB.
But If you are talking about the shallow dof of the second you are just using the wrong type of camera if you need to be that far away from the subject. You need to be shooting on something like the new AF100, a DSLR or Red camera with very fast lens. All his shallow dof is with the camera right up against the focused subject. It also looks like he spent some time with color correcting.
I don’t think your stuff looks bad, it looks like something that was shoot in a expo room with very flat lighting. If you want something more dramatic you have to light and shoot it differently. Also it doesn’t look like the focus was spot on, that maybe the compression.
my 2 cents.