I’m not an artist so I had to look for software to make my art life easier and here’s a list I’ve compiled
MayaLt: it’s cheap at $30/month USD and the student license is free for 3 years.
Adobe Mixamo and their site. You can rapid development some game characters.
gimp: poor man’s photoshop
inkscape: poor man’s illustrator
Marvelous Designer: It’s great for making clothes for 3d models without having to subdivide mesh into clothing like in MayaLT. Super easy to use. Meshes are game accessible. Metal Gear Solid 5 used it. 50/month
If you have the cash, I like iClone suite.