To actually give you answer to your questions, here we go.
1. Roughly what do you charge per hour for ArchViz modeling
Working on the side, in my basement, doing the level of renderings you posted. Maybe $150 each. Keep the details simple and consider the fact that you will most likely not get a W9 from a job under $600. "Good, Fast, Cheap - Pick 2" , is what I always say. I think you will be in the fast/cheap area, which is fine.
2. Roughly what would you charge for a residential visualization for a 1600 sq/ft home, an interior, and an exterior
Me? I would charge a lot more than $150. I have 15 years of training, an architecture degree, and my visual eye is probably worth more, to be honest. This all comes with time though.
3. What would you charge for a full interactive (walkthrough) model of the same 1600 sq/ft home
Be careful of this trap. Full Interactive? A full VR model? some 360s that create a virtual walk-thru? interactive, like you can change out materials and finishes live? This needs to be defined better but some full VR interactives can run in the thousands of dollars and take a lot of know-how.
This all takes time and experience. If you have a passion for it, you will get there, just keep learning and get as much experience as you can without totally selling your soul. No $5 renderings on Fiverr. That website should be burned to the ground.
You said something about getting rich - maybe jokingly. I am not sure what your current professional background is but I want to be clear. You are not going to get rich doing this, espcially in the US. That's not why any of us are here or ending up in this profession. I think there may be some misunderstanding that we are like architects (they don't make that much either). There are a few studios that can charge quite a bit but understand those firms have dozens of people working on a project, massive overhead, etc. I repeat - NO ONE IS GETTING RICH IN THIS INDUSTRY.