okay I can give some
The brick literally looks like two prism together, by exception it has some holes
The controller is detailed (which is good), however the console is not and does not fit, which means the brick itself looks bland
I would make the edges not pointy (aka not 90 degrees), I would do the same as you did in the control, to make the edges ramps
If I named my add on like a parody of something, I would make the model similar to what I made parody of (thats just me)
I would not make the brick just 1 big prism, I would add some levels