Hi Dopong, like you I just completed the first lesson, so please consider that in my critique.

It seems to me that you didn't use a fineliner in the superimposed lines, I´m not really sure but take an eye if that's the case, other than that you have done a really good job.

In ghosted lines exercises you do a little of wobbling in your lines, I would take more care of that in the warmups when you start the 250 boxs challenge.

Appart of the wobbling, in the ghosted planes and the elipses in planes you do a prety good job, it seems to me that you already have some experience in that.

You did really nice in all the table of elipses, I have nothing to say in that.

In the funnels there are some distortion in the elipses of the extremes, take care of that.

In the plotted exercises I have nothing to say but some trouble in the shadow that you applied on the boxes. All of them should be coming of the same spot. I mean that some boxes have the shadow in the right, when in others of the same frame have the shadow on the other side wich is strange.

In the rough perspective i think you doubt a lot when you do your lines, consider to do more ghosting in the lines, I think that it helps a lot. Another thing is that you don't have to do the same line twice, the idea is to work with the line that you already done to create a strong base.

I have the same problems in the rotated boxes. I think that is important to develop in our minds the sense that you are rotating a 3d object in a 2d space. Keep an eye on the wobbling, remember the ghosting method always and use your shoulder.

I really like the last page of the organic perspective. In the first page i think that you doubted in the scale and proportion of your boxes, becouse in some points you didn't make more big. Try to do the same that you did in the second page, it was a really good job.

One last thing, you did a really nice job, keep it. Do the 250 boxes challenge partner, i see you there.