This sample is done in pastels. The colors are mixed in such a way that they show a gradual color movement. On purpose I choose a different stitch from the previous exercise, this time a double cross stitch. It is a bit irregular, but I like that effect, but that is because the black fabric I used as background is such a thight woven one that threads cannot be counted.
For the second part of this exercise I used a drawing on paper first - again using pastels: