My advise here is to put the keyboard and floppy drive to the sides, as there is plenty of room on a 16:9 / 16:10 screen. Currently you will end up with a really tiny game-screen and the focus should always be on a larger game-screen .
Also maybe try, to match the colors of the hardware better. Judging by the screen here, the keyboard shines in a nearly white color, where the other components are in a dark gray. This destroys the illusion and looks somewhat un-natural to me.
Otherwise its a really nice work.