Note This is useful to remove all background and get a clean and sharp model. I also use Figma (free) to center my subject and remove extra things.

Note This is the magical part! Upload your clean character image and get a clean 3d model from It. If the Space is too busy, use "Duplicate this Space" to skip it (it should work well on a A10G small). Once that's done, you can download your model in glb format (textures included!) and use it wherever you want.