They look nice, but pretty grainy.
It's hard to tell with the jbg compression.
it would be nice if you could give us some details on the stills, like Fstop, etc.
I checked out the Quicktime you had on there (ajj.mov). Again, it looks good, but kinda grainy, and there was a flickering to the image. Maybe it was just the compression.
EDITED TO ADD:
I just saw a few more stills that you did add the Fstop info to.
Guess i jumped the gun.