Following Marvel's Secret Wars press conference on Tuesday, fans were left to speculate what a combined Marvel Universe and Ultimate Universe might look like. We already have some pretty intriguing ideas, courtesy of an enterprising cartoonist named Calvin.

Getting the jump on the official announcement, he's reimagined the Marvel Universe in a series of of illustrations called Supreme Marvel. Described as his "own little reboot" of Marvel, Calvin comes to this with a mission in mind: "One of the main driving points of this project was to introduce more diversity in the Marvel Universe, as well as highlight existing diverse characters!"

He's already presented new lineups, backstories and costumes for a number of Marvel's teams, including the Fantastic Four, the X-Men, the Avengers and the Defenders.

I particularly enjoy Calvin's Supreme Defenders. From its cast (Black Panther, She-Hulk, Kavita Rao, the Invisible Woman and the Wasp), to the redesigns (especially the Wasp), and even the backstories in terms of how they came to join the team.

Although at its heart it's merely fan fiction, it's invigorating and encouraging to see talented people engaging like this with characters and producing new takes on classic parts of the superhero genre.