Study for "Big Frog Light Show"

Painted this little study this evening for a potential larger painting that I've been thinking about.
I saw this stunning sky and light on the mountains as I drove up the road on Chilhowee Mtn and the view across the Ocoee valley to Big Frog Mtn and it's encircling wilderness.
I wonder if I can pull it off on a much larger canvas? I struggle with keeping the same look to my work when I go big. I'm thinking 24"x36". I know that's not big to some artist's, but that's a lot of real estate to cover with paint for me.