New poster, C&C mountain biking

So heres a few photos I toko today, still have a few more to edit but these are what I have so far;
All were shot with 18-55mm kit lens (most around 20mm) 430 EX triggered by skyports.
Let me know what you guys think
1.

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Cool photos, but the sky seems a little over-saturated and takes away the focus from the rider. I think it would help to crop a little, especially number 2 and 3.

hm, wouldnt that take away from seeing the jump(rock) and landing? thought it was always better to get both into a shot to keep perspective of the size of it better.
Any other tips?

Great photos but the sky seems overdone saturation for me too...
You can even see a bluish overcast in some of them. Besides that really cool photos.
Keep up!

Ditto on the sky, I think I like the last one the best. Some zoom blur might make an interesting twist to that one.

alright ill tone the saturation down on them
Thanks guys!