Boiling clouds

Composition-wise, this is not what I would normally shoot.  What I mean is that although I really like the sky, the roof of the building is not something that I would normally want in my picture.  In this case, I could have cropped it out or something but left it in because I think it gave some bit of balance to the shot.

This shot occurred mostly by accident.  We were with some family members who were looking at a condo here in Austin, and while checking out the place I noticed the wonderful things the sky was doing.  It looked like the clouds were boiling.  They were moving around like crazy.  I asked the sales lady if I could get my camera and tripod out for a couple of snaps, and she agreed.  Initially I planned to shoot the downtown skyline (out of frame to the right), which was visible but was fairly distant, and partly obscured by power lines, and lacked the drama in the sky.  But then I turned and aimed mostly north and found all this exciting stuff happening in the sky, so here it is.  

This is a 6 exposure HDR taken at f/11, with exposures ranging from +2 to -3.  They were merged in Photomatix to create the HDR, then adjusted in PSE (Curves, Contrast, Unsharp Mask) and a light touch in Topaz Adjust.