Nice photographs, and what a beautiful sky. The 3rd is best for me, its colour is great, and because there is so much going on in the sky the silhouettes are maybe not nessesary.
I think in 1 and 2 it would have been better to avoid the grass and just having the building silhouettes, would made them cleaner and stronger.
The building looks interesting and the grass distracts from it.
Beautiful colours and wonderful patterns in the clouds.
Wow, very beautiful skies alright, what strange looking clouds the way they drop off in wisps at the bottom….
I would agree about the second image, it would be better with just the building creating a more intresting balance if thats the right way to say it….
-S