My current "opus" would be the leagues pieces. I love the very idea of the league and upon wanting more from not just the main league but previous incarnations, I decided to, in a way, do it "myself". As some of these characters are lost to time, they are a mixture of direct likeness to amalgamation to interpretation based on the original works themselves and common deduction based on the times themselves. Some people may see the characters differently and thats fine, as everyone sees something different in the minds eye when they read.
Because I love the idea of this universe where almost all fiction is real, there will be some fan fiction