Hey Kirus,
You want to start by defining a source of light. It shouldn't be that every single place on his body is filled with the exact same shade. There are bright spots, and there are shadows. Increase the contrast a little as well.
Anatomy is your friend
His neck is too long/his shoulders shouldn't slant down so much, his arms are a little short, and he looks like he's wearing pants made of skin. The thighs should taper down gradually and there shouldn't be such a division at the knee. Take some time to study the human form before you begin to pixel it. It can be a pain in the butt now but it'll be indispensable later on.
I think it'd be a lot of help to you if you removed the outlines - since your base is so small, they are a waste of space. Instead, use contrasts between light and dark to shape his form.
The animation is stiff. In a normal walk, your torso would slightly twist from side to side as one arm goes forward and the other goes back.
I'd also suggest adding more frames unless there's a restriction, because right now it looks very choppy.
I commend your courage in tackling a front view walk! Keep up the good work.
