The pixel art you've got thus far is competent, but I have to ask, how much thought did you put into the design of the main character? Sorry if this sounds harsh but he looks like any other action game main character ever. Does it HAVE to be a muscle joe with an American face? He's a trucker, can't he be fat with booze nose, or long-haired and dirty, or perhaps small-sized with pot-belly and a reclining hairline? Why are you keeping to stereotype so closely?