Frank, you need to get out more...
Actually these are quite good. I don't add so much detail to my cirrus. I probably should. But unless the focus is on the clouds, like here, people will imagine that you have more detail than is really there. But this is an impression I get from Flickr, many of the people there are not all that observant.
One thing I would add to this is more 'root' for the clouds. The wispy clouds often form from larger, less defined areas. A note on this observation, my eyesight is Bad. It's almost to the point where I can't get a drivers license. So details that people with good vision are totally lost to me. The plus side of this is when I don't have my glasses on, everyone looks much better.
