Not bad at all! Good work on the shark picture, not perfect but I've found that shooting into those underwater tanks can be very difficult. I had a terrible time at Living Seas (err, "Seas With Nemo and Friends") last trip, I didn't get any underwater shots that I was really happy with.
The SpectoMagic shot could probably use a little white balance adjustment... they're looking a bit yellow. For the panning shot, try upping the shutter speed a bit. The cars are moving plenty fast enough for you to still get a blurred background without having to go as slow as 1/40th. And finally, the burning stuntman was a 300mm shot at 1/125th of a second, which is really not fast enough to get a sharp photo without a tripod. You were using shutter priority mode, in "armchair photographer" mode I'd say that bumping that to something closer to 1/500th or so would probably work well. There was plenty of light to do that, since that shot was ISO 100 and F11.
Looks like you did a fair amount of shooting in 100% manual mode, as opposed to Av or Tv... any particular reason? Just taste, or finding that to work better for you for certain situations?