Don’t know what format to use vertical or horizontal, even if I recognize the paysage framing offers more colors of the lake , I think I prefer the portrait framing to focus on the pond , otherwise it looks a bit lost. It always hard for me to choose the best framing.
And yes I know I never respect the rule of 1/3 …
Both shots have their merits, and often for sunsets I prefer horizontal - but this works really well vertical. I love the gentle colours in this shot - fav!
Ian