Did you use any reference? Because it looks so well drawn, I mean, by the proportions and everything.
I love the randomness in this image, makes me feel tat you were a little bored on that airplane.
I wouldn't know what to draw in an airplane.
this is good for a sketch specially on a moving airplane... it only lacks shading.. but this will do for a sketch... sometimes in times like that it will help if you'll smudge with your fingers to shade
actually it could work by just using 2B... then just make sure you'll have different pressure on every stroke... then use your fingers to smudge them or just a piece of cotton or cloth
I love the randomness in this image, makes me feel tat you were a little bored on that airplane.
I wouldn't know what to draw in an airplane.