I have attempted doing a mock up myself, but lets face it..I am no Angel when it comes to mock ups.
I thought it would have been better in the prequels if the republic looked like the empire. I do not think where is a real need for precurses,
The clones should have just look like stormtroopers
The republic ships just should have been star destroyers.
It would have looked great!
Update
Something Like this
