New art - "Burn The Ships"

My band, Ironwood Rain, is working on the music for our second CD.
The title for one of the songs is "Burn The Ships," In reference to Cortez' infamous act, burning his ships, a statement of his resolute focus on his goal.
This inspired artwork, of course. And here is an initial sketch:


"Burn The Ships 09/Sketch 01"
Pencil, 9 x 12"
I wanted to capture the feel of the smoke billowing from the ship, and the intensity of the burning timbers, while keeping the sketch spontaneous and loose.