Thanks Steve! Actually it does look quite blue, but I didn't change that much to the photo really. White balance was cloudy, camera style "portrait"(no kidding), pushed the whites just a little and blue tones are even dialed back a little That's it...
Good luck with your photos! I like your long exposure shots already so I'd like to see what comes out next

Edit: Oh yea and I added a digital gradual filter(ND) on the top to make the clouds a little darker and more intense.