You are looking stout with your head shaved. I'm willing to bet if you try the 30 day rule you'll never go back to hair again. Your wife will come around. Mine did and she's uber critical of a lot of things. Welcome to the club.
I haven't shaved it since Tuesday and I am having an issue with acne on my scalp. I thought it was ingrown hairs but now I'm not so sure. Upon close inspection I don't see the usual hair sticking out of them. I'm thinking it might be from my CPAP mask straps (I have sleep apnea). I think I'm going to go buy a do-rag or skull cap of some sort to wear under the straps. I don't want to razor shave it again until this clears up. I will keep it trimmed close though. I have a clipper with a 1\16in guard.
My wife likes the current 5 day growth much better than razor shaved. I'm not sure yet which way I like better. In my opinion the current 5 day growth makes my scalp look a little gray, which I don't like. But my wife says she doesn't notice the gray tint.
Buying a do-rag or skull cap may not be a bad idea. Over time, most of us don't wash our bedwear often enough, and the sweat and dirt can easily get into the pores of a shaved head especially if you are new to head shaving. I know your wife says she doesn't like it (at least not now), but that is what the 30-day rule is for. Good luck!
Whether you opt for shaving or the equivalent of a few day's growth is really up to you. You've made the big step now, and that is what's important. While I prefer to shave every day, it's certainly not a requirement, and I tend to agree with what some others have said that shaving every few days produces a possibly more satisfying shave.
Looks great. Congrats on your first shave.