Matching Background With Foreground

I see a great sky and I immediately try to find the best foreground setting to do it justice. Clouds move about and change their patterns far more quickly than you would imagine, so it has to be located relatively nearby. There are never that many options. Which is all by means of explaining the reason for more repetition! I'm not really sure why I feel the need to apologise, but I do!! What is that about I wonder?