blending mode is fine on this gradient but opacity could have been dropped a bit for a better blend. super crisp shot and smack on the challenge. congrats.
Nice shot, although there seems to be patches of light and dark which don't look right e.g. the tops of the trees look dark, behind the grass in the bottom right looks too light and there are light halos around the rock and tree reflections.
What is it that causes the glow around the rock? I love the perfect stillness of the mirror like lake reflection. Sorry, the big rock really does nothing for me.
Second thought: Oh, I think I get it. It is the reflection of the reflection of the sky masked by the rock. Interesting.