Color grouping and details on the white front area really makes this drone very solid creation. The small details in the front area really sells the ship, althought I must say that the "side arms" look bit odd.. I could understand small wings with some finger like things but flying robot with arms looks bit odd. Oh well, the arms are nice additions to bit boring sides.
Only big critique I have is the lack of contrast between the smooth white area and the black engine part: Only contrast between them is the colors and that doesn't really work. The contrast between different parts could look more drastic, for example smooth white area and much more detailed and "machine" black area, to really draw a "visual line" in the creation. The simplicity of the white area is already in the effective in the creation but to make the MOC really shine, that simplicity and style could be "upgraded" to next level by tinkering with the black area.
Oh well, just my 0,02 cents. Don't worry, the Hunter is already nice creation, I just see some more potential in the concept that you have made.