Need Help Reviewing Ardunio/GRBL/EasyDriver Wiring

I have designed and mostly completed a 3-axis CNC setup using Arduino Nano as the controller and three EasyDriver boards for the motors. I would like someone to go over the wiring with a second set of eyes to make sure I haven't made any stupids before I turn it on. I have everything documented in Frizing and can write up a dialog about the design intent behind each part. Is anyone interested in helping?

Are you not trying things out step by step as you develop your project?

What stepper motors are you planning to use? Can you post a link to their specification?
The Easydrivers can only provide a max of (I think) 750 mA.
What is the output voltage and current of the power supply you will use for your motors?

Are you planning to write your own code to control the stepper motors?

...R