I saw some Marvel vs Star Wars ideas by - and after kicking myself for not thinking of the concept first - I decided to draw two of my favourite characters going head to head.
I picked The Punisher and Jango Fett because there are a lot of similarities between them. Neither character has super powers - instead they both rely on weapons and training. Also, they both owe a lot to characters played by Clint Eastwood: the concept for Jango is borne from Boba Fett - who draws from Spaghetti Western characters like Clint's 'Man With No Name' - while The Punisher owes a lot to the 'Dirty Harry' character.
I emphasised the similarities between the characters in my drawing by setting them in almost symmetrical poses. I've drawn The Punisher as a typical 'comic-book' character (inspired by Mike Zeck's work) - with an exaggerated physique - while Jango has more realistic proportions. I chose Cloud City as the battleground mainly just so that I could use a lot of warm orange highlights.
I'm not taking any bets on who'd win this one!
This was first drawn in pencil, then pen - before being scanned and coloured in Photoshop with a Wacom tablet. The resolution here is much much reduced from the original.
I haven't seen that movie for a long time - but I remember it was quite a good idea - and like you say the 'gun-kata' was a very interesting idea. Maybe Jango and the Punisher have had the same training!