awesome work! I love how the knight turned out, though I saw the progress pics and I feel like the tower thingy on the left should've been left out, instead you should've focused on the bird to give it a slightly more 3d look with some simple shading. I also wouldn't have used the dithering on the shadows, it should be used more sparingly, and you should keep in mind that it can give the illusion of a rough texture, so something that looks as soft and smooth as sand shouldn't have much dithering imo