Posted in >>11454225, but also looking for advice on improving it here:

Flaws I wanna address include:
> Lanky proportions, but don't want to lose the leg parts since the thighs are articulated.
> Upper torso's insides are full of plastic and needs a way to reduce that so the joint for the abdomen can be recessed deeper.
> Entire arm assembly from shoulder to forearm is unable to stay on and isn't that good at folding upward.

To that end, I have some questions:
1) How do I remove more of the material inside the upper torso? Do I need to buy a router or some power drill that can scoop them out?
2) How do I hollow out the arms so that I can slide arm parts inside, making them actual sleeves?

3) I think I want to improve the joints a bit in the shoulder so he can cross his arms and pose more, so I have a question: Are there any joints like this with a 3mm peg at the end?

Or do I have to cut up the figma Konata leg I have to get that joint out, then sand the ball down to a 3mm peg?
(Are there ways to get that socket piece out of that leg without any destructive methods? Hot water isn't cutting it for me.)
(see image in >>11454227 for joint I'm looking into)

I just recently finished customizing a figma Astolfo. While I'm proud of my work for now, I'm still wondering how best to further improve on this.

Flaws include:
> Lanky proportions, but don't want to lose the leg parts since the thighs are articulated.
> Upper torso's insides are full of plastic and needs a way to reduce that so the joint for the abdomen can be recessed deeper.
> Entire arm assembly from shoulder to forearm is unable to stay on and isn't that good at folding upward.

To that end, I have some questions:
1) How do I remove more of the material inside the upper torso? Do I need to buy a router or some power drill that can scoop them out?
2) How do I hollow out the arms so that I can slide arm parts inside, making them actual sleeves?
(continued in next post)