Well, perhaps it's a graphic novel that focuses on a deamon lord who becomes a hero through time travel. Maybe he has to go back in time to correct some great wrong that was done in the past, which led to his current state as a deamon lord. Or he could be traveling to the future to prevent a catastrophe that would make his world even worse.
Maybe there is a wizard or a sage who helps the deamon lord hero on his time - travel journey. Another possible main character could be an antagonist from the deamon lord's original time who is trying to stop him from changing the past or future. And of course, the deamon lord hero himself, who is probably a complex character with a troubled past and a hope for a better future through his time - travel experiences.
The 'Man of War' in Malibu Comics often has superhuman strength and advanced combat skills. It also has a complex backstory and a mission to protect justice.
The choice of background music for cartoons really varies. If it's a children's cartoon, maybe light and playful tunes would be nice. For more serious or dramatic cartoons, orchestral or emotional music could fit the bill. Also, the tempo and rhythm should match the action on the screen.
Tentacle hole manga in its raw form often features explicit and unconventional imagery. It might have bold and unfiltered depictions that can be quite shocking for some.
It could be quite an unusual and perhaps somewhat intimidating image. Maybe it shows Ronaldo's features combined with the menacing look of a cobra head.