In my last round of feedback, I pointed out two main issues (specifically in this diagram drawn on top of your previous work):

• You were not drawing the corner boxes

• You were making the "extremity" boxes (step 3) more complicated than instructed - all you're asked for is a simple basic square.

These two issues are still present. While you're no longer trying to play with the perspective of those extremity boxes, you're still drawing a complete box when only a square is requested. In regards to the corner boxes, once again they're not there.

So, here are the same issues shown on your latest work. At this point, I'm really focusing a lot less on the quality of your work, and more on whether or not you're following the instructions. I suspect that because you're still heavily focusing on quality of the end result, you have a tendency to forget the specific things I'm calling out.

If you're not already, I highly recommend both reading through my feedback immediately before doing the work (so it's fresh in your mind), and immediately after completing your work (to check if you missed anything).