affinity photo Golden November

[j3rry]

For this picture I had to completely replace the sky, which at first seemed unfeasible. Then I remembered a channel selection in this context. So I selected the blue channel (the main colour of the overcast sky), inverted it and cropped it with a mask. Selected a new sky and inserted it under the leaves layer. The rest was then just a matter of adjusting the tonality and colour.
 

[Fnwolf]

That looks great. Would never know the sky has been replaced. I hope I can remember channel selection! It would be cool to see a before and after.