I was going to comment on how the slopestyle photo's don't really stand out and just seem like generic action photos taken with a nice camera, but I read the last bit and I guess it's because of the angles you're shooting from.
But then again, I've seen a bunch of your photos and in my honest opinion you can do better, especially the second one.
The middle one really bothers me. If you could see what the black things on the edge were it might be better, but I think you should either back up and let it be known they are trees, or just completely keep them out of the shot.
And maybe move the frame up a fraction on the last one; my eye's drawn to the structure more than the rider.
Other than that though, the shots are the best its gonna get without that ever elusive media pass.
I think I like the second last one the best, it would be awesome for a magazine article where you could put text in the left hand side.
