All your shots top any of mine.
I've tried my hand at HDR, but I failed miserably. Maybe because I tried to go the easy way out and use only a RAW picture instead of 3-4 different ones. =/
I really love the colors in the first picture.
The last picture is my fav, but I think it'd be much better if the yellow/green was a little more "HEY LOOK AT ME!".