Finally mastered uploading and would love some c&c

[Zippyy]

Hi
Have always loved taking photographs and decided to have a go and get a little better at it. I have taken some photos and would love if anyone would give their opinion and suggest ways to improve them. I have a few more just taking a while to add them.
Thanks

1.

2.

3.

Hopefully the links work this time ...fingers crossed

 

[Gaerek]

I really like #3. Looks nearly perfectly exposed for the sky and I love the pattern of the clouds. I hope this doesn't sound sarcastic, because I'm not trying to be, but were you going for the over-exposed, over-saturation look in #2? I know some people like the artistic look of that, so if that's what you were going for, it looks pretty good, however, I don't see any part of the frame that is in sharp focus.