Sketch For Missionary Aviation Painting

I have a good friend who is a missionary pilot south of the border. I can't say what country he is in, for his safety's sake. He flies folks to the hospital, delivers Pastors, Missionaries, Doctors, Nurses, Dentists, medical, and other supplies up into the mountains. A fellow pilot will be retiring soon, so he wanted to present a painting to him. This is a rough draft of a sample I sent him. This is one of the tamer places he flies in and out of.