Batman Minion by Elspeth De Montes
Her Superhero Minion Gallery includes the likenesses of Superman, Spiderman, The Incredible Hulk, and Wolverine. They are based on the Bricks Ben minion design, which is pretty complicated and uses a lot of studs not on top building techniques.
LegoTessa has a video of how to build her minions. These ones are a bit smaller and look quite doable without having to order a whole pile of bricks from pick-a-brick.
