the console itself is not bad but the controller needs a lot of work, I think you need to find good references and really look at the controller to see what it looks like. Also, your model is grey but a PS2 is more of a shiny black. The console could use some extra details like the controller ports and memory card slots and such. Keep working on it.
Here are some pics of a PS2 model I did a while back. It's not perfect by any means but you get the idea.