2. Pick up parts you like. And set colors, opacities of each parts. Set camera position, zoom and so on. (you can use example setting: Bones and muscle)
3. Click "Link" (#1 in the image at right)
4. Check "Size M" (#2 in the image at right. Importantly "L size" doesn't work in Wikipedia. For more details, see User:Was a bee/File size restriction)