Character art practice for new template

So, I've created a new template - a mini fig of sorts - called PlayA. I wanted to add some character art as practice and hopefully soon after, a series.

Can you suggest some characters to do? They should be easily recognizable, not require too many accessories (capes, shoulder pads, weapons, helmets are okay but no preferred), not be too detailed (though I could do a simplified version) and SFW.

Otherwise, I'm gonna start off with something like the Justice League or Avengers or something. Incidentally, Hulk would probably be out because of his larger size, although I could either scale up a figure or just do a normal-sixe version.