Couple things that I noticed, especially now I see the close ups.

Controller -
look at the references - the white square around the AB buttons are rounded. Round that off.
The words on your model is way too small. As well as the buttons. If you want to be exact, the controller is pretty much off. There's lots of references, just put your mesh on top of it and start from there. It may be too much to start over again, but you can fool us by just making the arrow buttons bigger, the buttons bigger, and the font for "Nintendo" bigger. Should look better.

Good luck!!