I never understood why the big 0 key on the numpad was on the left, especially if it's on the left side of the keyboard. Normally you would use your right thumb (at least that's how I use a numpad), but you're going to use it with your left hand, and how would you press the 0 with your left thumb?
Looks clean though, GLWIC
Also I don't think this is a 75%