Thank you Eagle's Eye Video (A) and rdonson (B) for two impressive, and different, renditions of Graham's image. It would be fascinating to read both your step-by-steps. FWIW (not much - my eyes are subjective and I haven't used any tools to analyse), here's what I get from them:
A. Less brightness, less contrast, more detail - especially in shadows, warm palette, bright blue sky
B. Impressive sharpness, more brightness, more contrast, less detail, cool palette, gray overcast sky
As a work of art, I prefer A. As an arresting advertising image, I prefer B. And you both did a great job in smoothing out Graham's canvas texture.
Incidentally, it wasn't until I opened A and B that I realised that the miniature Chinese lanterns on the beach were actually birds!