Making Sims 3 paintings

Recently, I discovered how easy it is to make paintings with multiple images for the Sims 3 and I have gone crazy with it. I have made two sets of anime posters, a set of video game and movie propaganda posters, and two sets of yaoi paintings already. Me thinks I have a problem.

Making Custom Content Makes me want to scream sometimes

I am a beginner creator, but sometimes stuff that should be easy, decides to fuck itself up and make me work harder than need be.
I made a set of superhero themed baseball shirts and they went all fine until you go into CAS and try to change the pants while your sim is wearing the shirt. It then goes all one-colored and won't recolor in advanced CAS at all. I am sure it is an easy fix, but I am just slightly annoyed so fixing it is going to have to wait.

A new project

Today, I started a collaborative manga project with some friends. I have been dying to do something like this, but never had the opportunity. I feel like it is going to be fun and will definitely help me get motivated to make my own oneshot yaoi that I keep intending to make, but never can keep up the drive to.