What he said. That base is pretty bad, and I don't really think bases are a good idea for art in general.
there's personal-opinions-on-bases in that spoiler, if you'd rather pass on that don't click, but...
If it's a commission, you should really not use bases in the first place unless they're ones you make yourself. And even then, I find it a bit of a morally grey tactic.
They're paying for your art, not art that's made using someone else's prefab work or really prefabbed work in general.
Plus, you don't learn a whole lot if you stick to bases and premade poses, you have to be willing to fail before you can start to get good.