Hey Wobotwizard, I'll be taking a look at your submission today.

You've extended the edges in the right direction & hatched the front faces but your hatching is not what we want, it should not start & stop at arbitrary points/distances & always be done using ghosting method. We want the hatching to be done like this https://drawabox.com/lesson/2/8/hatching.

Your line weight is smooth without any repeating lines.

Sometimes your edges converge in pairs, you might have lost the vanishing point. You might be doing this already but I suggest ghosting toward the vanishing point from all available edges, whenever you want to place a new corner. See https://imgur.com/8PqQLE0 for more help on this.

Over all your boxes in later half & near the end came out really good, they do need better convergence but you can definitely improve it over time with practice.