It's hard to tell where the object is in relation to the horizon, and thus how big/small it is supposed to be...could be big, beally far back and on the ground, or small, close to the viewer, and floating high above the ground. Also follow the lighting suggestions so far, especially shadow, that'll help fix the orientation problem. I'd tone down those highlights on the front, or move them to the side, to properly show the light angle, the highlight goes on the closest part to the light source.