searching for some extreme body slide

[assteeriix]

Hello Im searching how to make a sim like this I have sliders to make sims more big but not enough like the one of the image this its the page where I found it https://www.pixiv.net/en/artworks/111861838 mostly I have the sliders of hokusai26  if someone can recommend others to personalize more the body but I searching more to make a sim like this elf.