the second one is really good.. I like the texture of the background.
the third one is not sharp..
try to get closer to the skating guys, and you need to be careful with the exposure. the first one might have a bit of artsy look (cropped differently) but I suppose it isn't what you wanted to achieve.
I like the 2nd shot as mentos 007 said. You need to practice getting the action shots at the right time? If you can't do it why dont you set your camera to burst mode so you catch a couple of frames and then there should be atleast one there that will be better then the early frames.
That last one would have been great if you caught him at the end of the ollie and especially with that rail in the foreground!
i just need to practice the timing. Im shooting on film so i dont especially want to spend 5 or so frames just to get the 1 shot. Eventually when i invest in a digital i will, but for now just time it right
try timing that with film and manual focus!!! then you've got skillz
i like the 1st one...just cause i looked where he is about to land and i pictured a big crash...
in my mind the skate boarder is saying "crap...now what?"