This is from a series of sketches I did where I took an element from a book cover and tried to draw something different around it, without changing the position or the location of the element (aka, if it's smack in the middle of the frame, it stays there). This one is using the drawing from Russian edition of The Hobbit. I wanted to finish it. The whole exercise was a lot of fun. It's really hard to not move the elements.
My dragon looks a bit different though. Here's the original cover : [link]