How to get such a sky in photos?

Question

Image processing

Answer 1

Such a sky sometimes happens in life. I saw this on Friday in our city.
Then in Photoshop it is simply finished with a file.
If you need to artificially give such an effect - take the sky with white clouds, apply a pink layer with a blending mode (replacing light areas with a pink layer). And finish with a file.

Answer 2

Look for a photo with the sky, and then replace the sky by placing a beautiful picture under the bottom layer, and selecting the area with the sky with a magic wand / curly lasso and applying a mask over the selection. Should work out well. Then adjust the white balance of both images to match, and you're done.

Answer 3