I really hate to tell you this but you effectively made the same mistake again. I can see that you've started extending the side edges of the cylinders, but that's not the important piece that was missing previously.

As explained in this video and in this section of the instructions, what we're trying to check against the box's own vanishing points are the three lines we get out of every ellipse: its minor axis, and the two lines defined by the 4 points at which it touches the plane around it. You didn't tackle these at all.

Now I don't want you to sit there grinding your cylinders forever, but I cannot stress enough just how important it is that you read and follow the instructions explicitly. This stuff is confusing, so I can understand you having difficulty with it, but in this diagram I explicitly lay out that you should be checking the convergence of the minor axes, and of the "contact points". If you don't understand something specific that is being instructed, ask, but don't barrel through another hundred cylinders just to find that you missed the instruction again.

I'm going to assign an additional 30 cylinders in boxes this time, rather than the full 100. I want to see that you understand those instructions.