I think it has a great start. Compositionally, the details you were discussing will make a great difference tho as to where your eye goes. Based on your description, for me I am not really believing the floating object is technologically advanced, it actually looks rustic and machine-like. That could be a whole other way to go, but it just didn't seem to coincide w/ your description. I realize it is a WIP so it may change greatly. Good work.

No need to think outside the box....
    Just make it invisible.