Player costumization does not get any better than this.
Reputation ranks
Ranks only ever go up; points can drop but your rank stays.
About reputation ranksFigura acts as a player editor, sure, but it also acts as a LUA scripting hook for minecraft.
You want more limbs? You want a speech bubble when talking? You want to run server commands out of a quick-menu?
It's all doable, and that's just scratching the surface.
Need more examples? Go look at 4P5 on youtube.