2:35 PM, Thursday June 4th 2020
Those are much better! Hatching is optional, if you can do it to get extra practice, and I do recommend it, as well as adding lineweight with superimposed lines to the silhouette, but if you don't want to do it, you don't have to.
About the boxes, like I said, they're better. You're still having problems with the convergences, and I'm pretty sure is because you're thinking about lines in pairs, instead of thinking about all the lines at the same time. When drawing a line, you need to take in mind all of the other lines on it's set of parallel lines. It's explained here on this diagram.
I've found doing boxes on this order helps as well, so be sure to give it a try, specially for shallow foreshortening boxes.
Next Steps:
Do 5 more boxes with shallow foreshortening, to see how you're doing with them, and you're done, keep it up and good luck!