Hey! Thanks for sharing your submission! One thing you could do to make it look more "professional" is to pay closer attention to your line quality and avoid overly hairy or scratchy lines. Try using thicker lines where forms overlap, in shadow areas, or in places with more detail, and thinner lines for the internal details. Another thing I'd recommend is studying how your favorite artists draw in their sketchbooks. There isn't really a single "professional" way to do it, every artist has their own approach and style. What they all have in common, however, is a solid understanding of form and perspective, and that has a huge influence on the way they draw. Keep it up! | Artwod Feedback