Scrap it?! No way! Flesh it out and add some details! I've seen a LOT of mechas and this design is sick. The tan camo and red highlights are cool. I like the thin head and single eye; they make it look more like a robotic killing machine than a mecha meant to be operated by a human passenger.
I love this piece. I really like when is something that calls for a solid appearence but is made in a way that it looks more natural or in movement, also the number of details that you can call and is made with a lot of blurry strokes.