I really like the style and the line quality; it reminds me of the kinds of illustrations that were made for the adventure stories of the early to mid 1900's. I think the color might be a bit garish. I'd tone down the green, at least. While you might be able to find a pigment that was that bright on the paper when first applied, by the time the edges of the page were that distressed, I should expect the color to have faded quite a bit. That is only an opinion, though, and I almost always think things should be desaturated.