This video presents some of Marc's process and underscores the need to make modifications that improve a composition. What? Why? Because sometimes Nature needs a little help.
"Gammell (who taught Charles Cecil) would always say "err on the side of beauty". That's what I always think of when I make changes to nature."
(Posted with Marc's permission.)
Marc has an informative blog filled with helpful tips and a lot of his work and he is very generous with his knowledge.
You can check out his blog here: www.marcdalessio.com
And finally, here is a permalink to the original post, where Marc offers additional information about his painting: www.marcdalessio.com/time-lapse-studio-landscape