Crashers Redesign!

[meat]

I loved the Castle Crashers game! I am doing some character redesigns for fun. Here are the sketches so far. I would love to hear what people think before I move to concepts with reference etc.

What are these characters supposed to be? The orange guy looks like a berserker type, and the blue and red look like brooks. Green looks like an assassin, and the grey not-sure. I like the red and blue because they look like characters that belong to a game called Castle Crushers - they look like they can dent and crumble walls of stone and bend gates of metal.