Damn you have really made it difficult here and for yourself i think we all loved and still love laying back on our backs watching mother nature changing the cloud show by the second i have so many cloud photos it's making it extremely difficult to choose but here goes these are my two entries.... giving you something different in cloud formation !!
Entry - 1
"The Dolphin Cloud"
Entry - 2
"The Hiroshima Mushroom Cloud"
Great! The second one looks a bit like Hiroshima!!
Thank you @kus-knee it certainly does look like that :))