I like in #47 and #45 that it conveys "cloud" without screaming "CLOUD!". Even with that being the case #48, with the target on the cloud isn't bad. #47, #44 could be better with some data/predictive element? I would probably have ranked #48 higher, but I didn't want other people to attempt it - it's a difficult one, and I can't think of a way it would be made better.. Thank you!