Hello there!
I used to do some basic customs when I was younger, and I finally starting again, using my good ol'Toshop. I might be a little bit rusty, that's why I've challenged myself to create 20 custom minifigs - virtually first, I'll see later for the "real" version. I'm sticking with four themes to make it slightly easier to find ideas: Doctor Who, DC, Marvel and... I haven't decided of the last one yet (maybe Harry Potter or James Bond). I'm not a big fan of super-heroes, but I like to dig the Internet to find alternate costumes or forgotten heroes (I'm looking at you, Element Lad!). Some customs might still be a little bit "rough", but I really wanted to share with you the first figs I managed to do :)
http://nsa39.casimages.com/img/2018/01/26/180126113244538207.png