@Eliavah you definitely should try it! You just need the Sims 4 Studio and Blender. It's so fun. They're becoming my favorite thing to make. Here is a really good, completely basic, step by step tutorial on the S4S boards:
http://sims-studio.proboards.com/thread/466/blender-create-sims-absolute-beginners
There are other things when it comes to the pose that I realized after trying to make a few that aren't in there too. If you have any questions, I can help.
Also, it helps when you're making a pose, to get up and make the pose yourself in a full length mirror to see how your body would be positioned to make that pose. It really helps to make them more realistic. I probably looked pretty funny trying to make the poses myself hahaha :D
