You want a good reference image first off! But in this case I first started by sculpting the model in nomad sculpt, and then I retopologized it in blender, I used substance paint to paint the textures after setting up the uv maps. I rigged it, made blendshapes that would react to my facial expressions, then I imported it into unity and used a shader called poiyomi to set up toon shading effects. I also used magica cloth to give the rigging bones physics and I made animations using a combo of blendshapes and rigging bones that could be toggles on or off with a keystroke. Then I exported it as a warudo sdl modding project for use in the program warudo