Feathery Sunset Clouds

On the way back after the sun had already dropped behind the trees, I saw these few clouds catching the light from below. I didn't think too much of the shots initially because the clouds were quite small in the frame and above was clear blue sky. But reframed in a 2:1 format brings them to life and I can appreciate the colours reflected in the still water, as well.

I noticed the top corners were a touch darker, perhaps a natural vignetting due to the failing light. A couple of local adjustments in Lightroom and some fiddling about seemed to achieve an acceptable result.