In order to make this image, I started with a public domain silhouette of an octopus. Using the Bezier tool (ctrl-b), I traced each part of the octopus, the head and its 8 arms, making sure to separate the tracing into two lines for each part, a top and a bottom, which allows the next technique to work. I took each top and bottom and combined them (ctrl-k) into a single path of two subpaths each. Finally, I took each of those paths and applied the stitch sub paths (live path effects or LPE) and set the number of lines to 25 for each part. Before applying the stitch sub paths LPE, I duplicated my original tracing, and placed it on top of the LPE applications, to create an outer edge to the parts, which disappear when you apply the LPE. I also painted a body color using the calligraphy tool, and applied a slight blur to it. Finally, I applied a sea like gradient to a rectagle in the background. Hope you like it.